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

A transmission power and real-time measurement technology, which is applied in the direction of measuring devices, radio wave measuring systems, instruments, etc., can solve the problems of high price, low measurement accuracy, and low system integration, and achieve the effect of low cost and high measurement accuracy

Inactive Publication Date: 2014-02-19
BEIJING INST OF RADIO MEASUREMENT
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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

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

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Embodiment Construction

[0016] A real-time measurement device for millimeter-wave cloud radar transmit power, comprising: a transmitter 1, a coupler A2, a coupler B3, a first mixer 4, an amplifier A5, a second mixer 6, an amplifier B7, a filter 8, Digital receiver 9 , signal processor 10 , display terminal 11 and frequency synthesizer 12 .

[0017] Transmitter 1, coupler A2, coupler B3, first mixer 4, amplifier A5, second mixer 6, amplifier B7, filter 8, digital receiver 9, signal processor 10 and display terminal 11 connected in series; the output terminal of the frequency synthesizer 12 is connected to the input terminals of the coupler B3, the first mixer 4 and the second mixer 6 respectively.

[0018] Transmitter 1 outputs a millimeter-wave power signal, and coupler A2 couples a part of the power signal output by transmitter 1 and outputs it. The output signal is called a main wave signal. After the main wave signal passes through the coupler B3, it is mixed with the local oscillator signal sent...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
CPCG01S7/40G01S7/4013
Inventor 魏艳强
Owner BEIJING INST OF RADIO MEASUREMENT
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