Device for measuring transmitting power of millimeter wave cloud radar in real time

Abstract

The invention discloses a device for measuring transmitting power of a millimeter wave cloud radar in real time. The device for measuring the transmitting power of the millimeter wave cloud radar in real time comprises a coupler A (2), a coupler B (3), a first frequency mixer (4), an amplifier A (5), a second frequency mixer (6), an amplifier B (7) and a filter (8), wherein the coupler A (2) carries out coupling to form a signal of a transmitter (1), the signal passes through the coupler B (3), and is processed through twice down-conversion of the first frequency mixer (4) and the second frequency mixer (6), twice amplification of the amplifier A (5) and the amplifier B (7), and filtration of the filter (8), and an intermediate frequency signal is output; the intermediate frequency signal is further processed through a digital receiver (9), a signal processor (10) and a display control terminal (11); a test signal generated by a frequency synthesizer (12) enters the coupler B (3) to obtain the gain from the coupler B (3) to the signal processor (10). The device for measuring the transmitting power of the millimeter wave cloud radar in real time has the advantages of being low in cost and high in measuring accuracy.

Description

[0001] technical field [0002] The invention relates to a power measuring device, in particular to a real-time measuring device for transmitting power of millimeter wave cloud radar. Background technique [0003] At present, there are two types of real-time measurement devices for millimeter-wave cloud radar transmission power: millimeter-wave power meter and detection signal power measurement circuit. There are many kinds of millimeter wave power meters, including thermistor power meters, thermocouple power meters, and pulse peak power meters, all of which are relatively expensive, require timing calibration, and have low integration with the system. The detection signal power measurement circuit includes: a directional coupler, a detector, a sampling circuit, and an operational amplifier circuit, which are greatly affected by the ambient temperature and have low measurement accuracy. Contents of the invention [0004] The purpose of the present invention is to provide ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a real-time measurement device for millimeter-wave cloud radar transmission power, which solves the problems of the existing millimeter-wave cloud radar transmission power real-time measurement device, which is relatively expensive, has low integration with the system, is greatly affected by ambient temperature, and has low measurement accuracy. question

Images