Method for compensating frequency and phase consistency of radio frequency channels of phased array radar
A technology of phased array radar and compensation method, which is applied in the direction of using re-radiation, radio wave reflection/re-radiation, measuring devices, etc., and can solve the problems of phase inconsistency of multi-channel signals of phased array radar and failure of coherent superposition, etc.
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[0096] Detailed ways
[0097] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
[0098] The invention provides a radio frequency channel phase consistency compensation method, the basic idea of which is:
[0099] Transmission process: The frequency difference and phase difference between the reference channel and the comparison channel are used as the compensation value before the transmission of the IF broadband digital signal, so that the processed RF broadband signals of each channel are exactly the same.
[0100] Receiving process: Use the frequency difference and phase difference between the reference channel and the comparison channel as the compensation value to adjust the frequency and phase of the NCO, and finally make the IF broadband signal after processing the same as the channel.
[0101] The compensation method is divided into two compensation methods: the transmitting process and the receiv...
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