Synthetic Impulse and Aperture Radar (SIAR): A Novel by Baixiao Chen

By Baixiao Chen

Analyzes and discusses the working precept, sign processing process, and experimental result of this complicated radar technology

This ebook systematically discusses the working precept, sign processing procedure, aim dimension expertise, and experimental result of a brand new type of radar referred to as man made impulse and aperture radar (SIAR). the aim is to assist readers gather an perception into the idea that and precept of the SIAR, to grasp its operation mode, sign processing approach, the adaptation among the conventional radar and itself, the designing beliefs, and the constructing method.

It contains 10 chapters. bankruptcy 1 offers an advent to the fundamental precept of SIAR and its attribute of 4 antis. bankruptcy 2 introduces the working rules and process structure of SIAR. bankruptcy three offers the most waveforms and the corresponding sign processing tools. bankruptcy four is ready the long-time integration procedure. bankruptcy five indicates the high-accuracy dimension and monitoring of 4D parameters of aim in SIAR. The range-angle coupling and decoupling are brought in bankruptcy 6, the place a standards for transmit frequency optimization of array parts is studied to beat the coupling between variety, azimuth and elevation.  In bankruptcy 7, detection and monitoring of ambitions in robust interference heritage is investigated. bankruptcy eight analyzes quantitatively the impact of array blunders at the monitoring accuracy of SIAR. enlargement of impulse and aperture synthesis to HF band and microwave band are brought respectively in bankruptcy nine and bankruptcy 10. The working precept of the radical bi-static floor wave radar method, in addition to the experimental approach and the experimental effects are integrated in bankruptcy 9.

Written via a hugely skilled writer with wide wisdom of SIAR (Chen), the e-book can be utilized as a reference for engineering technical team of workers and medical study team of workers operating within the learn of SIAR, MIMO radar, electronic radar or different new kind of radar. it might probably even be a reference for lecturers and scholars in universities who interact in comparable expert work.

  • Details the working precept, sign processing technique, objective size expertise, and experimental result of man made impulse and aperture radar (SIAR)
  • Expands the means of impulse and aperture synthesisfrom the VHF band to the HF band and the microwave band
  • Written by means of a number one writer with decades’ examine and useful adventure in sparse array SIAR, a standard MIMO radar

Engineers, researchers and postgraduates operating in radar engineering will locate this a useful resource.

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Additional info for Synthetic Impulse and Aperture Radar (SIAR): A Novel Multi-Frequency MIMO Radar

Sample text

26) indicates that |????(????, fd )| provides a conservative estimation for the mean-square difference between the return signals of the two adjacent targets. That is to say, |????(????, fd )| is the only factor that decides combinable resolution between the range and Doppler frequency. 25) is not the unique form of the ambiguity function. 27) Both forms of the ambiguity function’s definitions are different, and so are their physical implications. In accordance with unified international recommendations, the ambiguity function from the point of the resolution angle is called the positive ambiguity function and the ambiguity function from the point of the matched filter output is called the negative ambiguity function.

Since SIAR adopts omnidirectional radiation, long-time coherent integration can be obtained in all directions. The number of pulses Ni for coherent integration in SIAR is up to the thousands, much more than that of conventional radars. For example, if Ni = 4096, the increment of the signal-to-interference plus noise ratio (SINR) after coherent integration is 10 log(Ni ) ≈ 36 dB. 2. Application of signals with a large time-bandwidth product. SIAR can employ signals with large time-bandwidth product (such as phase coding signal) to improve the signal-to-noise ratio.

Nominal resolution denotes the ability to distinguish adjacent targets in the mainlobe without considering the sidelobe interference. Sometimes, for convenience the 4-dB width of the mainlobe for a sinc function is used to define nominal resolution. 40) where B is the effective bandwidth of the signal. 41) 2 2B where c is the velocity of light, B is the signal bandwidth, and ΔR depends on the signal bandwidth. 5 m. Obviously, the wider the signal bandwidth is, the more narrow the pulse width is, and the higher the range resolution is.

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