Multichannel radar amplitude and phase automatic correcting method and device
An automatic correction and multi-channel technology, applied in the radar field, can solve problems such as inconvenient use and maintenance, inability to apply broadband systems, and poor environmental applicability, and achieve the effects of shortening the test process time, improving self-detection capabilities, and real-time calibration
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[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0036] There are at least three receiving channels in the monopulse tracking radar. In order to obtain the angle from which the target deviates from the radar axis, the receiving system must ensure that the phase and amplitude characteristics of the sum path, azimuth path, and elevation angle path in the entire frequency band maintain a relatively strict consistency. .
[0037]Therefore, the present invention provides a multi-channel radar amplitude and phase automatic correction method, the basic idea of which is: before the radar system works, the same radio frequency test signal is respectively fed into each receiving channel of the multi-channel radar system through a feed source, and each receiving channel is obtained. The phase characteristics and amplitude characteristics of the receiving channel, using one of the channel signals as the reference sig...
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