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2022 | Buch

The Development of Radar and Radar Countermeasure Kapitel lesen Erstes Kapitel lesen

Theory to Countermeasures Against New Radars

verfasst von: Xixiang Zhang, Prof. Kaiqi Xiao, Prof. Jie Gu

Verlag: Springer Nature Singapore

Enthalten in: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik"

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Über dieses Buch

This book introduces readers to a range of jamming principles and techniques for new radars, combining a wealth of theoretical analyses, test data, calculations, and charts. With rapid advances in military radar technology, new types of radar are constantly emerging. Therefore, there is an urgent need to carry out effective research on these new radars and to develop corresponding jamming techniques.

The main topics covered include development of radar and radar countermeasures; jamming techniques for synthetic aperture radar; jamming techniques for pulse compression radar; jamming techniques for pulse Doppler radar; general jamming techniques for various radars; analysis and calculation of the effective jamming suppression zone and jamming exposure zone for radars installed on different platforms; jamming techniques for phased array radar; jamming techniques for dual (multiple) static radar; and solutions for high equivalent radiation power, high reception sensitivity, and transceiver isolation in jammer design.

Inhaltsverzeichnis

Frontmatter
Chapter 1. The Development of Radar and Radar Countermeasure
Abstract
In 1885–1888, the German physicist Heinrich Hertz conducted his celebrated experiment that proved the existence of radio waves, which establish the core concept of radar. He verifies that the nature of radio waves being similar to visible light in their ability to be reflected from the metal object and refracted from the dielectric prism.
Xixiang Zhang, Kaiqi Xiao, Jie Gu
Chapter 2. Countermeasures Against Synthetic Aperture Radar
Abstract
Since the concept of imaging radar was proposed by an American scientist in 1951, the United States first developed the AN/APQ-97 airborne Synthetic Aperture Radar (SAR). After the 1970s, SAR extended from airborne to spaceborne, marking a new era of space operations for reconnaissance and remote sensing of the earth.
Xixiang Zhang, Kaiqi Xiao, Jie Gu
Chapter 3. Jamming Against Pulse Compression Radar
Abstract
The generation of pulse compression radar was not developed for anti-jamming, but designed according to the radar’s own needs. According to the demand for the warning radar, it is required to be able to find the target at a farther distance. However, the maximum detection distance of the radar is proportional to the fourth power of the radar’s pulse energy.
Xixiang Zhang, Kaiqi Xiao, Jie Gu
Chapter 4. Jamming Techniques for Pulse-Doppler Radar
Abstract
Pulse-Doppler radar is a new type of radar-based on the requirements of radar development. Airborne radar needs to be able to detect low-altitude moving targets. But ground objects or sea clutter affect the radar’s low-altitude performance. The clutter of ground objects and the Doppler spectrum of low-altitude moving targets are separated in the frequency domain.
Xixiang Zhang, Kaiqi Xiao, Jie Gu
Chapter 5. Unified Jamming Equation and “One-to-Many Systems” Jammer
Abstract
In the previous chapters, synthetic aperture radar, pulse compression radar, and Pulse-Doppler radar were discussed separately, and the jamming equations and suppression coefficients required for these new radar systems were derived. In these radars, although their jamming equations are expressed in different ways, they have a close internal relationship. If we can find out its internal connection, we can derive the unified radar jamming equation by normalization, which can simplify the design process of the jammer, and then realize the One-to-many systems, so that the radar jammer can be multi-functional.
Xixiang Zhang, Kaiqi Xiao, Jie Gu
Chapter 6. Analysis on Configuration of Radar Jammer and Protected Target
Abstract
In informationized operations, radar plays a clairvoyant role.
Xixiang Zhang, Kaiqi Xiao, Jie Gu
Chapter 7. Jamming Techniques for Bistatc Radar
Abstract
In order to effectively anti-stealth, anti-jamming, anti-radiation weapon attacks, and the discovery of low-altitude targets, modern radars are developing in the direction of bistatic and multistatic radars. In this chapter, according to the basic working principle of bistatic radar, the method of jamming to bistatic radar is proposed, and the jamming equation of jamming bistatic radar is derived. According to the basic performance of existing radars and jammers, some parameters were set to calculate the jamming exposure area of jamming bistatic radar, and the characteristics of jamming bistatic radar were analyzed.
Xixiang Zhang, Kaiqi Xiao, Jie Gu
Chapter 8. Broadband Antenna Technology
Abstract
With the emergence and use of new systems radar technologies such as Pulse-Doppler radar, pulse compression radar, fast-beam agile phase array radar, SAR radar, ISAR radar, and MIMO radar, countermeasures against traditional jamming methods have been applied with more effective ECCM methods in addition to their performance improvements. Besides, special designs, such as ultra-low sidelobe antennas, sidelobe concealment, sidelobe cancellation, polarization agility, fast beam scanning, etc., have been adopted for anti-reconnaissance and anti-jamming measures against electronic warfare, which poses a greater challenge to electronic countermeasures.
Xixiang Zhang, Kaiqi Xiao, Jie Gu
Chapter 9. Jamming Against Phased Array Radar
Abstract
The array antenna of phased array radar to switch beam quickly and accurately enables the radar to interleave in time and simultaneously perform various functions. This type of radar can also be used as a communication system. By changing the beamwidth of the antenna, certain areas can be searched more quickly with smaller gains. Random variations in the transmitting frequency between pulses or within coding in pulses can cause frequency agility. Multiple amplifiers located in the aperture can produce a large amount of power. The electronically controlled array antenna can provide the required flexibility for the radar to perform various special functions that are most suitable for specific tasks.
Xixiang Zhang, Kaiqi Xiao, Jie Gu
Chapter 10. New Concepts and Technologies of Electronic Warfare
Abstract
As one of the main operational forms of information warfare, electronic warfare will become more and more prominent in future wars. The research and development of electronic warfare technology and equipment will also receive more and more attention. Its level will continue to develop with the rapid development of electronic technology. Electronic warfare is moving from land, sea, and air to space.
Xixiang Zhang, Kaiqi Xiao, Jie Gu
Backmatter
Metadaten
Titel
Theory to Countermeasures Against New Radars
verfasst von
Xixiang Zhang
Prof. Kaiqi Xiao
Prof. Jie Gu
Copyright-Jahr
2022
Verlag
Springer Nature Singapore
Electronic ISBN
978-981-16-6715-2
Print ISBN
978-981-16-6714-5
DOI
https://doi.org/10.1007/978-981-16-6715-2

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