Enhanced target detection and identification via optimised radar transmission pulse shape

Abstract

This paper investigates the optimization of both single and full polarization radar transmission waveforms to maximize target identification discrimination. This theory is applied to the discrimination of the T-72 and Ml battle tanks based upon simulated target frequency response data. Significant performance improvement in identification is obtained using an optimized transmission waveform over that of a standard chirped pulse. generated using the Fast Illinois Solver Code Q^ISC) that applies a method-of-moments technique to provide high fidelity at relatively low radar frequencies. The specific VHF-band data generated by S AIC-Champaign cover frequencies between 225-375 MHz at an aspect interval of 2°.

Wideband Extended Range-Doppler Imaging and Waveform Design in the Presence of Clutter and Noise

“…In [3], [12]- [15], [23], and [27], the classical concept of matched filtering was further developed to address the joint design of optimum waveforms and receive processing for target detection and classification applications. In [3], [12], [13], and [23], methods of waveform/receiver design have been developed for target detection based on maximizing the signal-to-noise or signal-to-interference ratios.…”

“…In [3], [12], [13], and [23], methods of waveform/receiver design have been developed for target detection based on maximizing the signal-to-noise or signal-to-interference ratios. These studies assume that the target is range-only extended target and the impulse response function of the target is known and deterministic.…”

“…These studies assume that the target is range-only extended target and the impulse response function of the target is known and deterministic. In [12], [23] was extended to target identification problem. In [3], design of optimal waveforms for target classification based on mutual information criteria for range-only extended statistical target model was studied.…”

“…For a given set of orthonormal, differentiable basis for , the inverse affine Fourier transform can be alternatively expressed as (12) …”

Waveform Preconditioning for Clutter Rejection in Multipath for Sparse Distributed Apertures

“…Similar to the first approach, matched filtering is used as a foundation for joint design of waveforms and receive processing for target detection, identification and classification. [11][12][13][14][15] For target detection, the waveforms are designed by maximizing the signal-to-noise or signal-to-interference ratios.…”