Portable Radar Shaft Tester

Abstract

A portable tester that can accurately measure the electrical axis of meter-wave radar, mainly composed of a signal processing circuit board, a USB cable and a general-purpose microcomputer. The circuit board is connected with the radar to collect the echo signal, and then send it to a general-purpose microcomputer through a USB cable for data analysis. Use a multi-pulse accumulation to correct the single-pulse angle measurement method to calculate the radar electric axis pointing. This radar electric axis tester can be used for the azimuth calibration of the meter wave radar, which solves the inconvenience of using large-scale special equipment for radar azimuth calibration. The problem. Using a small amount of large-scale integrated circuits and high-tech application software, it has high reliability; the measurement accuracy of the electric axis can reach less than or equal to 0.1 degrees, ensuring the azimuth measurement accuracy of the meter-wave radar; it is suitable for factories and troops to measure the azimuth of the meter-wave radar. calibration. This technology can also be promoted and used in other radar fields.

Description

Portable Radar Shaft Tester technical field The invention is a portable radar electric axis tester, which is directly applied to the field of meter wave radar to measure the orientation of the radar electric axis. Background technique According to the working principle of the radar, when the radar finds the target, the line connecting the target and the radar coincides with the electrical axis of the radar (the center of the beam). At this time, the angle between the electrical axis of the radar and the true north (clockwise) is the azimuth of the target. After the radar enters the position, the azimuth is calibrated first. Before the calibration, the antenna is fixed as required. After the calibration, the north finder outputs the "North" pointer and the true north declination α, as shown in Figure 7. When the radar is working normally, use the SD or encoder to measure the angle β that the antenna rotates (β is also the angle that the electrical axis rotates), and α+β is...

AI Technical Summary

Problems solved by technology

The radar electrical axis tester of the present invention can realize accurate measurement of the meter wave radar electrical axis under normal conditions, and solves the problem of factory radar azimuth calibration

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