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In addition to the linear frequency modulation pulse, PD radar transmission pulse can also be:
Frequency jump pulse(FMCW pulse) : It changes the frequency of the transmitted signal, so as to achieve distance measurement and speed measurement. Compared with LFM pulses, FMCW pulses have a narrower bandwidth, but can achieve higher range measurement accuracy.
Rectangular pulse: A pulse of equal time width and amplitude that can be used for radar detection and ranging.
Narrowband pulse: A pulse with a very narrow bandwidth that can be used for target detection and tracking. Compared with LFM pulses, narrowband pulses have poor range resolution, but can achieve higher signal-to-noise ratio.