Waveform design for doubly spread targets detection
Date of Original Version
In this paper, we investigate the problem of radar signal waveform design under the small signal power conditions for detecting a doubly spread target in a colored noise environment. The doubly spread target spans multiple range bins (range-spread) and its impulse response is time-varying due to fluctuation (hence also Doppler-spread). Instead of adopting the conventional assumption that the target is wide-sense stationary uncorrelated scattering, we assume that the target impulse response is both wide-sense stationary in range and in time to account for the possible correlation between the impulse responses corresponding to close range intervals. The locally most powerful detector is then derived for detecting such targets. The signal waveform is optimized to maximizing the detection performance of the detector or equivalently maximizing the Kullback-Leibler divergence (KLD). Numerical simulations validate the effectiveness of the proposed waveform design for the small signal power conditions and performance of optimum waveform design are shown in comparison to the frequency modulated waveform.
2018 IEEE Radar Conference, RadarConf 2018
Zhu, Zhenghan, Steven Kay, and R. S. Raghavan. "Waveform design for doubly spread targets detection." 2018 IEEE Radar Conference, RadarConf 2018 , (2018): 49-54. doi:10.1109/RADAR.2018.8378529.