Signal source of S-band wave radar
A wave-measuring radar and signal source technology, applied in the field of microwave Doppler radar, can solve problems such as not using miniaturization, compact design, increasing system volume, affecting radar system performance, etc., to achieve miniaturization, signal-to-noise The effect of high ratio and low signal phase noise
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[0036] The present invention will be further described below with reference to the drawings and embodiments.
[0037] figure 1 It is a block diagram of a signal source circuit of an S-band wave measuring radar provided by an embodiment of the present invention. As attached figure 1 As shown, the signal source of an S-band wave measuring radar according to an embodiment of the present invention includes clock distribution conversion, synchronization triggering, direct digital frequency synthesis 1, direct digital frequency synthesis 2 integrated on a printed circuit board. , Phase locked loop, first local oscillator processing module, radio frequency signal processing module and second local oscillator processing module. The signal waveform generation of this scheme is based on direct digital frequency synthesis (DDS), and by improving the traditional signal generation circuit and radio frequency processing circuit composition, two local oscillator signals are provided for the ana...
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