Ultra wide band imaging semi-physical simulation testing method and system based on digital oscilloscope

Abstract

The invention discloses an ultra wide band imaging semi-physical simulation testing method and an ultra wide band imaging semi-physical simulation testing system based on a digital oscilloscope. The system comprises a testing plate, an oscilloscope and an upper computer, wherein a signal transmitting device, a signal receiving device, a transmitting antenna and a receiving antenna are integrated on the testing plate; a signal source transmits a signal to the signal transmitting device; the signal transmitting device respectively transmits the signal to the transmitting antenna and the signal receiving device; the receiving antenna receives the signal which is transmitted by the transmitting antenna and then reflected back by an object to be tested; the receiving antenna transmits the signal to the signal receiving device; the signal receiving device is connected with the oscilloscope; and the oscilloscope communicates with the upper computer. According to the invention, the manual operation frequency of the oscilloscope is reduced, the abrasion of the oscilloscope is reduced, a new signal processing algorithm and an imaging computing function can be flexibly added, and the analysis testing efficiency of the algorithm and the device is improved.

Description

technical field [0001] The invention relates to the field of ultra-wideband imaging research, in particular to a digital oscilloscope-based ultra-wideband imaging semi-physical simulation test method and system. Background technique [0002] At present, in the research process of ultra-wideband imaging technology, it is generally necessary to manually set various parameters for the oscilloscope. Repeated manual setting of the oscilloscope will easily cause wear and tear of the oscilloscope, and the protection of the oscilloscope is not used. [0003] Existing oscilloscopes have built-in simple signal processing methods such as filtering, but these methods cannot be integrated into the test system, and it is also difficult to meet the needs of ultra-wideband signal processing. [0004] The prior art does not integrate the signal transmitting device, the signal receiving device, the transmitting antenna and the receiving antenna into one test board, and the prior art cannot fl...

AI Technical Summary

Problems solved by technology

[0002] At present, in the research process of ultra-wideband imaging technology, it is generally necessary to manually set various parameters for the oscilloscope. Repeated manual setting of the oscilloscope will easily cause wear and tear of the oscilloscope. If the protection of the oscilloscope is not used

[0003] Existing oscilloscopes have built-in simple signal processing methods such as filtering, but these methods cannot be integrated into the test system, and it is difficult to meet the needs of ultra-wideband signal processing

[0004] The existing technology does not integrate the signal transmitting device, the signal receiving device, the transmitting antenna and the receiving antenna into one test board, and the existing technology cannot flexibly change the components on the test board

[0005] The existing test system can only view the received signal through the display screen of the oscilloscope, but cannot process the received signal in real time, and the oscilloscope itself cannot perform complex imaging calculations on the signal. The signal is re-stored to the host computer for calculation and analysis

[0006] For high-resolution imaging of multi-channel echo signals, the existing distance compensation method is generally carried out in the image processing link, but the calculation amount of image distance compensation is huge, which will affect the imaging speed, and the compensation in the signal has the effect of noise. The trouble caused by the miscompensation of the wave signal, the distance compensation of the entire target signal, while amplifying the target signal, will also greatly amplify the weak clutter noise near the far-end target signal, causing the effective signal of the target to be submerged in the clutter noise interference , the compensated effect will get worse

Images