Ultra wide band imaging semi-physical simulation testing method and system based on digital oscilloscope
A half-in-the-loop simulation and ultra-wideband imaging technology, which is applied to radio wave measurement systems, radio wave reflection/reradiation, instruments, etc., can solve problems such as inability to calculate signal imaging, affect imaging speed, and submerge effective target signals. Realize real-time analysis and real-time imaging display, enhance practicability and robustness, and have intuitive and effective display methods
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[0102] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0103] Such as figure 1 As shown, the ultra-wideband signal source transmits ultra-wideband bandwidth signals. After penetrating obstacles (walls, rubble, ruins, etc.), it will be reflected when it encounters the target object. The reflected signal is received by four receiving antennas through obstacles. The channels are respectively connected to the respective channels of the four receiving antennas, and the oscilloscope can display the data of the four receiving signals in real time.
[0104] The device test board part includes a signal transmitting device, a transmitting antenna, a receiving antenna and a signal receiving device. The signal transmitting device is a directional coupler, and the signal receiving device includes an amplifier, a power divider, a low noise amplifier, and a mixer. Each device on the test board can be replaced to test th...
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