Design of low sidelobe random radar signal by frequency-domain modulation method

The Journal of Engineering

关键词: radar polarimetry;    doppler radar;    fourier transforms;    frequency-domain analysis;    radar signal processing;    inverse transforms;    gaussian processes;    numerical analysis;    pedestrians;    random processes;    waveform analysis;    low sidelobe random radar signal;    frequency-domain modulation method;    amplitude spectrum;    random sequence;    time-domain designed random radar signal;    random phase spectrum;    dual-polarisation radar;    random waveform;    gaussian window;    low sidelobe signal;    gaussian power spectral density;    numerical simulation;    polarimetric microdoppler radar;    pedestrian;    inverse fourier transformation;   

DOI  :  10.1049/joe.2019.0701

来源: DOAJ

【 摘 要 】

A novel method for the design of random radar signal with low sidelobe is proposed in this study. Firstly, the authors modulate the amplitude spectrum of the designed radar signal using a Gaussian window and phase spectrum using a random sequence. Then the inverse Fourier transformation is adopted to obtain the time-domain designed random radar signal. The random radar signal possesses low sidelobe thanks to its Gaussian power spectral density and random waveform owing to its random phase spectrum. The performance of the designed random radar signal is examined by both numerical simulation and real data experiment with dual-polarisation radar, where the polarimetric micro-Doppler of a pedestrian is demonstrated.

【 授权许可】

Unknown