Vice Chancellery for Research and Technology, University of Tabriz Advanced Signal Processing 2676-3397 5 1 2021 08 23 Range-Doppler Clutter Suppression with Adaptive Pulse Compression by Randomized Stepped Frequency Waveform Range-Doppler Clutter Suppression with Adaptive Pulse Compression by Randomized Stepped Frequency Waveform 29 40 14210 10.22034/jasp.2022.44735.1132 FA Reza Kayvan Shokooh Faculty of Electrical and Communication, University of Imam Hossein, Tehran, Iran Alireza Zakeri Yasin Engineering Company, Tehran, Iran Younes Mohammadi Faculty of Electrical and Communication Engineering, University of Imam Hossein, Tehran, Iran Journal Article 2021 02 26 <span lang="X-NONE">Pulse-Doppler radars typically use pulse compression and Doppler processing to detect moving targets through fast Fourier transforms. The conventional pulse compression method and the standard matched filter output for detection of small targets close to a large target do not work well, since the sidelobes of the match filter output by a large target could mask the smaller targets. Adaptive pulse compression resolves this issue significantly in noise. However, the fast targets induce Doppler phase shift in the received signal frequency, in which cause mismatch between the received signal and the transmitted signal. Consequently, the Signal to Noise Ratio is reduced. Whereas the matched filter in the radar receiver is only adapted to the transmitted signal version and its output will be wasted due to non-matching with the received signal from the environment. Adaptive pulse compression is generally applied with a single pulse in alone noise environment, but in the presence of strong clutter it is required to several return pulses. In this paper, to supply these pulses, in a radar transmitter equipped with adaptive pulse compression, waveforms diversity are generated by random frequency hopping in step frequency waveform. The simulation results of the detection of masked moving targets are compared with other conventional methods.</span> <span lang="X-NONE">Pulse-Doppler radars typically use pulse compression and Doppler processing to detect moving targets through fast Fourier transforms. The conventional pulse compression method and the standard matched filter output for detection of small targets close to a large target do not work well, since the sidelobes of the match filter output by a large target could mask the smaller targets. Adaptive pulse compression resolves this issue significantly in noise. However, the fast targets induce Doppler phase shift in the received signal frequency, in which cause mismatch between the received signal and the transmitted signal. Consequently, the Signal to Noise Ratio is reduced. Whereas the matched filter in the radar receiver is only adapted to the transmitted signal version and its output will be wasted due to non-matching with the received signal from the environment. Adaptive pulse compression is generally applied with a single pulse in alone noise environment, but in the presence of strong clutter it is required to several return pulses. In this paper, to supply these pulses, in a radar transmitter equipped with adaptive pulse compression, waveforms diversity are generated by random frequency hopping in step frequency waveform. The simulation results of the detection of masked moving targets are compared with other conventional methods.</span> https://jasp.tabrizu.ac.ir/article_14210_0cf383a3483e40dc21a72e0c6d043b76.pdf