Pulse Doppler radar amplitude jitter estimation method
A technology of pulse Doppler and Doppler frequency, which is applied in the field of pulse Doppler radar amplitude jitter estimation, can solve the problem of weakened detection ability and achieve the effect of simple evaluation method
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[0030] The present invention will be further described below in conjunction with the drawings and embodiments.
[0031] A method for estimating the amplitude jitter of the PD radar can detect and estimate the amplitude jitter of the PD radar simply, quickly and effectively. Detailed descriptions are given below.
[0032] The method flow is as figure 1 Shown:
[0033] 1. After the RF transmitter is connected to the attenuator, it is directly transmitted to the RF receiver through the transmission line. Collect the echo signal data processed by the receiver through a data acquisition card or oscilloscope to obtain echo time domain data, such as figure 2 As shown, in this embodiment, 32 sets of time-domain data are continuously collected, and each group collects 1000 points
[0034] 2. Perform windowing and distance Fourier transform on the data, and get the frequency domain data matrix after taking the modulus, such as image 3 As shown, the number of FFT points used in this embodimen...
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