Pdf proximity fuzes are the most common fuzes used in artillery munitions. As the common buffer isolation methods are difficult to apply in laser fu. Radio proximity vt fuzes table of contents radio proximity vt fuzes and how they operate significance and background of the radio proximity fuze vt in world war ii development of proximity fuzes vt for projectiles vt fuzes mks 32 to 60 image of mark 53 vt fuse 1. Proximity fuze project gutenberg selfpublishing ebooks. With the rapid development of semiconductor technology and laser technology, a kind of proximity fuze named pulsed laser proximity fuze has been applied. The best suited fuze is an optical fuze based on a laser triangulation proximity sensor mounted inside.
Chapter 14 fuzing federation of american scientists. The target detection method, the technique of the laser, the signalprocessing technique and the antijamming technique of the semiactive laser proximityfuze are analyzed and researched on the platform of a small caliber antiaircraft guns. The paper analyze the characteristic of target echo of laser signal, and then make theoretical analysis and calculation on the laser signal. Ndia 48th annual fuze conference navair fuze overview naval air warfare center weapons division china lake randall d. Rf proximity fuze, laser proximity fuze, warhead, detonator, booster, the proximity fuze is a vital component of the missile since it seldom so happens. It is estimated that it increases the lethality by 5 to 10 times, compared to these other fuzes. It will be fitted with a proximity fuze, so that it detonates above the target, rather than on impact. Huimin chen, ping li, yingwen zhang, kun li, and jianqiang sun research on laser fuze technology based on mems. The paper deals primarily with fuzes for smoothbore projectiles, such as. There were three basic parts of the optical proximity fuze, they are. Because they operate at much shorter wavelengths, ladars. Jun 24, 2014 the present invention provides in a specific aspect a optical proximity fuze for a ballistic or flying device comprising an array of optical apertures distributed about the outer surface of the device, an optical wave guide network selectively coupling the array of optical apertures to a laser source means and to a photodetector means, such.
The action that causes a fuze to detonate before impact when any substantial object is detected at a predetermined distance from the fuze. The 57mm mk 295 mod 0 3phe fuzed cartridge from bae systems is a prefragmented, program. In order to improve the detection distance of laser proximity fuze without increasing laser power, the capability of laser fuze receiving weak laser echo signal must be improved. As the common buffer isolation methods are difficult to apply in laser fuze. Rf proximity fuze, laser proximity fuze, warhead, detonator, booster, the proximity fuze is a vital component of the missile since it.
A received fuze signal is filtered and square wave modulated then sent to a first traveling wave tube for amplification. Hence, the modelling of the laser pulse, propagations effects, reflection properties, detection technique and receiver signal processing have to be taken into. It is an important development tendency of proximity fuze. The general principles governing the design of radio proximity fuzes are presented. Recent advancements in proximity fuzes technology ijert. During the second world war, proximity fuze entered a stage of rapid development, and doppler radio fuze, electrostatic fuze, pressure fuze and infrared fuze were successfully developed1. Laser receiving system is an important part of laser fuze, but its working quality is very sensitive to severe overloading. With the development of the optoelectronic technology, the laser proximity fuze has been widely used in the field of. With the development of semiconductor laser technology, laser proximity fuzes have been widely used in various kinds of guided missiles and conventional ammunitions.
Keeping our troops safe on the ground, on the water and in the air its our only mission todays advanced defense and aerospace applications demand a partner who can deliver missioncritical performance, reliability and support. Battle environment for ballistic missile is complicated and tactical request is strict, so laser fuze equipped for it needs some special indices. Paper open access research and design of proximity fuze. Proximity fuzes are designed for targets such as planes, missiles, ships at sea, and ground forces. Significance and background of the radio proximity fuze in world. In a dopplertype fuze, the actuating signal is produced by the wave reflected from a target moving with respect to the fuze. Proximity fuzing, standard and custom pulsed lasers and. The optical proximity fuze described herein provides inherent flexibility in the way the fuze can be configured in the missile for optimisation for different applications.
With the development of the optoelectronic technology, the laser proximity fuze has been widely used in the field of surface. Rf proximity fuze, laser proximity fuze, warhead, detonator, booster, the proximity fuze is a vital component of the missile since it seldom so happens that. For lowcost laser fuzes mounted in small gunfired munitions, the microwave portion of the sensor must be miniaturized and ruggedized. Excelitas offers products that enable the design of proximity fuzes, including. Mp may 2018 ndia fuze conference 10 highspeed, stealth seaskimming missile. Modeling the interaction of a laser target detection. A common form used in modern airtoair weapons uses a laser as an optical source and timeofflight for ranging. A proximity fuze also called a vt fuze, for variable time is a fuze that is designed to detonate an explosive device automatically when the distance to target becomes smaller than a predetermined value or when the target passes through a given plane. Ultra wideband technology for precision proximity fuzing pdf doc ument. They provide a more sophisticated trigger mechanism than the common contact fuze or timed fuze british military researchers sir samuel curran. Various kinds of proximity fuzes are designed for various targets such as planes, missiles, ships at sea and ground forces. This proposal is addressed to that need and describes hittites approach to integrate all microwave circuit functions of the laser radar fuze sensor into a single mmic chip. Proximity fuzes are designed for targets such as planes, missiles, ships at sea and ground forces.
Udea designs and develops fuze electronics for artillery munitions and guided missiles. Successful implementation of this sensor will provide a. A space projectile proximity fuze uses the laser echo energy to control the actuator of the projectile internal device, and then makes the projectile explode. Research on laser fuze technology based on memsmoems. Early fuze systems were mainly divided into mechanically triggered fuze, electronic time fuze, optical and magnetically fuze. The projectile is mainly composed of the laser transmitting system, laser receiving system and the. In addition, many conceptional views were provided by footage and narration of film from the world war ii era. The instrumentation aspects of proximity fuzes are given due attention. Jun, 2019 with the development of the optoelectronic technology, the laser proximity fuze has been widely used in the field of surface to air missile, air to air missile, etc. Once a proofofconcept optical design is demonstrated, a cost model should be established, as well as a transition plan to bring the sensors into production. Views were also been provided to me over the past 39 years by those that i came in contact with, that either worked on the proximity fuze, or were users of the device.
Proximity fuze academic dictionaries and encyclopedias. Ladar proximity fuze system study eric blanquer masters degree project stockholm, sweden april 2007 xreert 2007. Know the types of target detection and recognition devices. Mmci modulatordetector for laser radar proximity fuze. Study on the techniques of pulse laser fuze study on the techniques of pulse laser fuze chen, huimin 20070926 00.
Aug 04, 2011 these apertures might be arranged to form a composite target images in a particular direction, andor may be arranged to perform a sensing operation along selected directions. To keep up with current fuzes, the latest information can be found in aircraft bombs, fuzes, and associated components, naval air systems command navair 115a17, and airborne bomb and rocket fuze manual, navair 111f2. Optical system to control termination of small and medium caliber. Fmu143 eb penetrator fuze dsu33 bb proximity sensor fmu140b dispenser proximity fuze hydrostatic sensor. Compared with other fuzes, pulsed laser proximity fuze has high ranging precision and strong resistance to artificial active interference. The objective of this effort is to develop a small, low cost, optical based proximity sensor for fuzing applications. Fog backscattering is one of the major reasons for false alarming in the laser proximity fuze. An avalanche photodiode apd, which had the advantages of high sensitivity, low noise, with inner gain, was used as photodetector in laser fuze system to improve the capability of laser fuze detecting weak signal. All citizens had to learn to live with food and fuel rationing, and no new cars or other consumer products made from steel. Research on the characteristics of fog backscattering. Request pdf study on the techniques of pulse laser fuze with the development of semiconductor laser technology, laser proximity fuzes have been widely used in various kinds of guided missiles.
With the development of the optoelectronic technology, the laser proximity fuze has been widely used in the field of surface to air missile, air to air missile, etc. Design of lownoise receiving amplifier circuit for laser. A proximity fuze is a fuze that detonates an explosive device automatically when the distance to. New generation naval fuze fremen efficiency against new. Evaluation of a novel integrated laser fuze receiving system gooa. A laser pulse is sent out from the laser source transmitter and travels in 5. Laser echo characteristics and detection probability. Ladar proximity fuze system study eric blanquer masters degree project. Combined with the current situation, the digital laser fuzes system based on the fpga has been proposed in this paper. Thethought, theories and methods of the active laser proximity fuze, the radio proximity fuze,the laser. The mk 82 and its variants are 500pound 227 kg class, lowdrag, generalpurpose aircraft bombs containing 89 kg of high explosive.
A laser proximity sensor for a projectile includes a laser diode having front and rear facets. A proximity fuze system includes an optical ranging apparatus, a detonation circuit controlled by the optical ranging apparatus, and an explosive charge detonated by the detonation cirtcuit. Research on the characteristics of fog backscattering signals. By analyzing the factors of measuring distance in laser proximity fuze, combined with characteristics of laser s farfield divergence angle, and according to aspheric optical design theory, we carry out image processing and simulation of. Electronic fuzes for naval artillery focus on new threats. As the name indicates, the optical proximity fuze is a device on a projectile which operates on the light signal produced by the target as the projectile approaches it. Proximity vtthe action that causes a fuze to detonate before impact when any substantial.
A proximity fuze is a fuze that detonates an explosive device automatically when the distance to the target becomes smaller than a predetermined value. Radio proximity fuzes residents of the united states born much after 1930 can have little appreciation for what it was like to mobilize for total war. The projectile is mainly composed of the laser transmitting system, laser receiving system and the signal processing system. Study on the techniques of pulse laser fuze request pdf. Jun 09, 2011 analysis on the characteristics of pulsed laser proximity fuze s echo analysis on the characteristics of pulsed laser proximity fuze s echo wang, kun. It also covers advances based on microwave frequencymodulated continuous wave fmcw systems and laser proximity fuzes. An of system consists of a laser transmitter, an optical receiver, and corresponding electronic signal processors. Combined with the current situation, the digital laser fuzes system based on the fpga has been. The fragmenting shaped charge warhead coupled with the laser proximity fuze provides excellent lethality against a wide range of targets. The lens as part of the conical nose of the rocket. The diode generates a main laser signal and directs a first portion thereof out of the front facet as a source beam. How a radio proximity fuze operates among various possible types of radio proximity fuzes, an activetype fuzed operating on the doppler effect was selected as being the most promising method.
Analysis on the characteristics of pulsed laser proximity fuzes echo analysis on the characteristics of pulsed laser proximity fuzes echo wang, kun. The laser proximity fuze has been widely used in the field of surface to air missile, air to air missile, etc. Fmu9bb fuze is interoperable with all fmu9ab applications compatible with laser guided bombs and with low and high speed drag air foil groups compatible with dsu33ab and dsu33bb proximity sensor fmu9 currently in use with mk80 series joint direct attack munition jdam being replaced by fmu152 joint. The optical ranging apparatus includes a pulsed laser light source for generating target ranging light pulses and optical reference light pulses. Dec 09, 2015 a proximity fuze is a fuze that detonates an explosive device automatically when the distance to the target becomes smaller than a predetermined value. This paper investigates the problems of the large beam divergence angle and short detection range in the launch system of laser proximity fuze.
A fuze is a device that causes the detonation of an explosive charge at the proper time after certain conditions are met. With the development of semiconductor laser technology, laser proximity fuzes have been widely used in various kinds of guided missiles and routine ammunitions. By analyzing the factors of measuring distance in laser proximity fuze, combined with characteristics of laser s farfield divergence angle, and according to aspheric optical design theory, we carry out image processing and simulation of laser spot by. Mp may 2018 ndia fuze conference 9 fmcw sensor provides a key information on the target. Sep 26, 2007 study on the techniques of pulse laser fuze study on the techniques of pulse laser fuze chen, huimin 20070926 00. Doppler shift, land clutter, proximity fuze, radio sensing iv. Laser jdam kits were developed to augment existing jdams. Understand the principles of operations and design of proximity fuzes. Jul 30, 2019 with the development of the optoelectronic technology, the laser proximity fuze has been widely used in the field of surface to air missile, air to air missile, etc.
The mk 82 aircraft bomb and its guided variants have been used extensively throughout the world and are one of the most common families of airdelivered munitions ever produced. The features of the different kind of fov field of view. Spot image processing and simulation of the laser proximity fuze. Recent advancements in proximity fuzes technology article pdf available in international journal of engineering and technical research v404 april 2015 with 8,901 reads how we measure reads. Command and control the mk 442 mod 0 fuze is automatically and individually programmed by the mk 110 mod 0 naval gun system proximity fuze programmer, which continually receives data from the ship fire control system. Proximity fuze, time fuze and multioption fuze are main. A system for jamming continuous wave radar type proximity fuzes used on surfacetoair missiles where the fuze requires an increase in return signal power level and a rapid frequency change for detonation. Evaluation of a novel integrated laser fuze receiving. They provide a more sophisticated trigger mechanism than the common contact fuze or timed fuze. Principles of measurement used by laser sensors and scanners. However, its influence to the frequency modulated continuous wave fmcw laser fuze has not been well studied. Jul 03, 2019 with the development of the optoelectronic technology, the laser proximity fuze has been widely used in the field of surface to air missile, air to air missile, etc.
A proximity fuze is a fuze that detonates an explosive device automatically when the distance to the target becomes smaller than a predetermined value, or when the fuze and the target pass by each other. Semi active laser proximity fuze target detection and. In depth analysis and design of crucial subsystem of proximity fuzes are given special importance. Research on the characteristics of fog backscattering signals for frequency modulated continuous wave laser fuze. Volume 127, issue 20, october 2016, pages 90469055. Target detection and simulation for laser proximity fuze. Pdf recent advancements in proximity fuzes technology. In world war ii, everyone and every facet of daily life was affected. In the previous article, we studied how the radio, or often called radar, proximity fuze operated and learned the history of its development.