The invention provides a glide monitoring circuit and device of an instrument landing system and a signal processing method. The circuit comprises an input signal processing unit, a signal synthesis unit and an output signal processing unit. The input signal processing unit is used for receiving input multi-path antenna analog signals and inputting processed multi-path antenna digital signals to the signal synthesis unit; the multi-path antenna digital signal comprises an upper antenna digital signal, a middle antenna digital signal and a lower antenna digital signal; the signal synthesis unit is used for carrying out IQ modulation on the upper antenna digital signal, the middle antenna digital signal and the lower antenna digital signal to obtain a plurality of modulation signals; and synthesizing the plurality of modulation signals. By means of the scheme, the problem that in the related technology, when the glide monitoring equipment completes signal receiving through the microstrip line technology, when the signals are transmitted in non-equal-length paths, errors of signal transmission affected by the environment temperature are different, and index fluctuation of the synthesized signals in the signal transmission process can be caused is solved.

    本申请提供一种仪表着陆系统的下滑监测电路、设备及信号处理方法,电路包括:输入信号处理单元、信号合成单元以及输出信号处理单元;输入信号处理单元用于接收输入的多路天线模拟信号,并将处理后的得到的多路天线数字信号输入至信号合成单元;多路天线数字信号包括上天线数字信号、中天线数字信号以及下天线数字信号;信号合成单元用于将上天线数字信号、中天线数字信号以及下天线数字信号进行IQ调制,得到多个调制信号;对多个调制信号进行合成。本申请通过上述方案,解决在相关技术中,下滑监视设备使用微带线技术来完成信号接收,使得信号在非等长路径中传递时,信号的传递受环境温度影响的误差不同,会造成信号传递过程中合成信号的指标波动的问题。


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    Title :

    Downslide monitoring circuit and device of instrument landing system and signal processing method


    Additional title:

    仪表着陆系统的下滑监测电路、设备及信号处理方法


    Contributors:
    LIU YUEKUN (author) / ZHONG LUNLONG (author) / WU RENBIAO (author) / ZHAI WENGUANG (author) / LI XIUQING (author) / LU DAN (author) / CHIKA (author) / WANG JIAN (author) / LI MEIYE (author) / BAI XIAOLIANG (author)

    Publication date :

    2024-04-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01S RADIO DIRECTION-FINDING , Funkpeilung / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / H03D Demodulation oder Übertragung einer Modulation von einem Träger auf einen anderen , DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER / H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS , Scheinwiderstandsnetzwerke, z.B. Resonanzkreise



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