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Online scanning test system for high power array transmitting signals and method thereof

A technology of transmitting signals and scanning tests, which is applied in the field of automatic testing, can solve the problems of poor automation, low test efficiency and low fault detection rate, and achieve the effect of improving test accuracy, test efficiency, and test accuracy

Active Publication Date: 2018-12-18
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide an online scanning test method for high-power array transmission signals, which does not require high-power radiation and is not limited by space, and completes the high-precision beam pointing compliance confirmation of high-power array transmission signals to solve the existing problems. Poor automation of technical methods, low test efficiency and low fault detection rate

Method used

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  • Online scanning test system for high power array transmitting signals and method thereof
  • Online scanning test system for high power array transmitting signals and method thereof
  • Online scanning test system for high power array transmitting signals and method thereof

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Embodiment 1

[0058] The present invention is realized through the following technical solutions, as figure 1 , figure 2As shown, an online scanning test system for transmitting signals from a high-power array, including a measurement and control system, a phase detector, a radio frequency switcher, a directional coupler with a load, and a high-power array for receiving signals transmitted by a high-power array The transmitting signal array surface 1; the high-power array transmitting signal array surface 1 is sequentially connected to the centering coupler and the phase detector and transmitted to the measurement and control system, and the measurement and control system feeds back the control signals to the measurement and control system, the phase detector, and the high-power Array surface 1 for transmitting signals; the radio frequency switcher is externally connected with a power measuring device.

[0059] It should be noted that, through the above improvements, the signal coupler an...

Embodiment 2

[0063] This embodiment is further optimized on the basis of the above embodiments, such as figure 2 As shown, further, in order to better realize the present invention, the high-power array transmission signal includes multiple array element signals, and the number of directional couplers is set and connected in one-to-one correspondence with the multiple array element signals; each The array element signals are set at equal intervals.

[0064] Further, in order to better realize the present invention, in order to ensure the phase measurement accuracy, the radio frequency switcher is connected to the power measurement device through an amplitude-stable and phase-stable cable.

[0065] Other parts of this embodiment are the same as those of the foregoing embodiments, so details are not repeated here.

Embodiment 3

[0067] Such as image 3 As shown, an online scanning test method for high-power array transmission signals uses automatic channel switching to realize signal attenuation and phase scanning, and finally obtains the synthetic beam azimuth through data processing.

[0068] Further, in order to better realize the present invention, specifically include the following steps:

[0069] Step S1: Control the high-power array transmission signal to work normally; guide the high-power array transmission signal array surface 1 to synthesize beam signals in a certain direction according to the set frequency by issuing beam control code and frequency code instructions;

[0070] Step S2: The program-controlled RF switcher scans and reads the coupled output power values ​​of multiple array elements, reads the channel insertion loss value in the storage space of the test system, obtains the real transmit power of the array elements, and judges whether the array element power index is qualified;...

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Abstract

The invention discloses an online scanning test system for high power array transmitting signals and a method thereof. The system comprises a measurement and control system, a phase detector, a radiofrequency switch, directional couplers provided with loads and a high power array transmitting signal array surface used for receiving high power array transmitting signals. The high power array transmitting signal array surface is sequentially connected with a centering coupler and the phase detector to be transmitted to the measurement and control system, the measurement and control system separately feeds back control signals to the measurement and control system, the phase detector and the high power array transmitting signal array surface; the radio frequency switch is externally connected to a power measuring apparatus. Signal attenuation and phase scanning are realized by automatic channel switching, and finally a synthesized beam azimuth is obtained by data processing. According tothe online scanning test system for high power array transmitting signals and the method thereof, the test efficiency is improved, the test complexity is reduced, and the test precision of an angle is improved.

Description

technical field [0001] The invention relates to the technical field of automatic testing, in particular to an on-line scanning testing system and method for high-power array transmitting signals. Background technique [0002] The high-power array transmission signal refers to the transmission signal formed after the excitation signal is amplified by some devices and the beam azimuth is guided and controlled. This type of signal has the characteristics of high transmission power, many array channels, and complex beam azimuth and pointing tests. It needs to develop special tests. The method confirms the performance compliance of such signals. [0003] At present, the test method for transmitting signals of high-power arrays is mainly through the space synthesis test method. The main steps are to place the transmitting signal device on the turntable test fixture in the microwave anechoic chamber, set up the receiving antenna, and adjust the receiving antenna so that it is in li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/28
CPCG01R31/2822
Inventor 钟翼莫文静侯雪纤王帅徐典科
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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