Low-altitude target detecting system of three-coordinate continuous wave one-dimensional phase sweeping unmanned aerial vehicle
A detection system and low-altitude target technology, which is applied in the field of three-coordinate continuous wave one-dimensional phase-scan detection system, can solve problems such as elevation angle splitting, signal-to-clutter ratio reduction, and low altitude, and achieve expanded detection airspace, guaranteed detection capability, and data rate high effect
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[0018] Refer to figure 1 . In the embodiment described below, the three-coordinate continuous wave one-dimensional phase-scan UAV low-altitude target detection system is mainly composed of the frequency synthesizer sub-system, the transmission and wave control sub-system, the antenna feed sub-system, and the receiving sub-system that are cross-linked. , Signal processing subsystem, data processing and communication control subsystem, antenna control subsystem, etc. constitute an optimal embodiment.
[0019] Among them, the frequency synthesizer subsystem provides the system with frequency modulated continuous wave emission excitation signal, high stability local oscillator signal and clock reference signal. The emission and wave control sub-systems fix and pre-set the beam direction of the elevation plane of each wave position, and use the frequency modulated continuous wave ranging system to measure the distance of the target, and transmit the continuous wave signal to the scann...
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