B-Scan in a Reverberation Chamber

Use one‐bit technique to measure the coherence in the time, frequency and space domain in a reverberation chamber

“…The TD response can be obtained from the FD response by applying the inverse Fourier transform (IFT) to the measured S 21 [25,26,28]. To demonstrate this process, we measured the S 21 in the frequency range of 1-3 GHz, 20,001 frequency sample points were used.…”

“…If we check the statistical behaviour of an electromagnetic RC, the real/imaginary part of the frequency domain (FD) response has a Gaussian distribution [1] and the time domain (TD) response is a non-stationary process with Gaussian distribution [25]. They both satisfy the mathematical preconditions of one-bit correlation technique in [23].…”

A Novel Simulator Of Radar Clutter Environment

“…Then, it is found that the spectral model of reverberation chamber is exponential with the deep research of reverberation chamber. For the continuous stirred reverberation chamber, the continuous stirring of the stirrers can be regarded as the motion of the scatters of the radar and the wall of RC can be regarded as stationary scatters in the face of the radar signal [9]. Therefore, the above model can be used to describe the spectral characteristics of reverberation chamber, in other words, the reverberation chamber can be a simulator of radar clutter spectra because the above model has been verified that it is effective to fit clutter power spectrum.…”

On the Time Domain Error Caused By the Frequency Domain Sampling Rate in a Reverberation Chamber

“…The time domain (TD) response of an RC is very useful for the Q factor measurement and chamber calibration [1]- [6], [18]- [23], the antenna efficiency measurement [5], [6] and the time-gating technique [24]. To obtain the TD response in an RC, a widely used method is to measure the frequency domain (FD) response and apply the inverse Fourier transform (IFT) to the measured S-parameters.…”