Method for improving low interception performance of radar signal
A radar signal, low interception technology, used in radio wave measurement systems, instruments, etc., can solve the problems of difficult BT product, low interception performance, limitations, etc., achieve excellent speed resolution characteristics, improve distance resolution or speed resolution, The effect of increasing the degree of pseudo-randomness
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[0008] A method for improving the low-interception performance of radar signals, firstly combining FSK signals and PSK signals, then modulating the combined FSK signals and PSK signals, and finally using the modulated combined signals as radar signals.
[0009] In order to improve the low-intercept performance, the method of combining signals and compound modulation is adopted. Among them, the signal combination method can obtain a composite signal with a large BT product, and realize the direct complementation of a single signal to improve the distance resolution or speed resolution; in addition, the composite modulation can also improve the pseudo-random degree of the signal, thereby reducing the interception of the receiver for detection , Difficulty in identifying and tracking. The FSK / PSK combined signal has a larger time-width-bandwidth product than any single signal, and has better velocity resolution characteristics than a single signal, and is a better signal with low...
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