A method and device for azimuth echo signal reconstruction
An azimuth signal and echo signal technology, which can be used in measurement devices, reflection/re-radiation of radio waves, radio wave measurement systems, etc.
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[0072] In the embodiment of the present invention, the energy of the fuzzy signals of each channel is obtained according to the aliased azimuth echo signals; the energy of the fuzzy signals is processed into the form of a covariance-like matrix; the reconstructed The energy of the azimuth echo signal, the principle of reconstructing the azimuth echo signal is based on the azimuth signal of each channel, and the energy of the fuzzy signal is minimized while reconstructing the azimuth echo signal.
[0073] In synthetic aperture radar technology, since the sampling rate of a single channel, that is, the pulse repetition frequency (PRF, Pulse Repetition Frequency) must be greater than the Doppler bandwidth of the azimuth signal, in this case the obtained azimuth signal will not appear aliasing Phenomenon, so a higher PRF can avoid the occurrence of aliasing, but it is difficult to achieve in practical applications due to various reasons.
[0074] In the embodiment of the present i...
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