A standing wave detection method, device and device with storage function
A technology of standing wave detection and standing wave ratio, which is applied in the field of communication, can solve the problem of slow improvement of signal-to-noise ratio, and achieve the effect of improving signal-to-noise ratio and improving efficiency
Active Publication Date: 2021-06-18
HYTERA COMM CORP
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Problems solved by technology
[0003] The technical problem mainly solved by this application is to provide a standing wave detection method, device and device with storage function, which can solve the problem that the signal-to-noise ratio of the existing FDR standing wave detection method is slow to increase.
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no. 1 example 30
[0066] Such as Figure 8 As shown, the first embodiment 30 of the standing wave detection device of the present application includes:
[0067] A signal generator 301, configured to generate a standing wave detection signal, the standing wave detection signal including alternating positive and negative periodic signals;
[0068] The transmitting circuit 302 is connected to the signal generator 301, and is used to transmit the transmitting signal through the transmitting channel, wherein the transmitting signal includes a standing wave detection signal and a baseband signal;
[0069] Reflection receiving circuit 303, connected to the transmitting circuit 302, for receiving the reflected signal generated during transmission of the transmitted signal;
[0070] The signal processing circuit 304, connected to the reflection receiving circuit 303, is used to periodically invert the reflected signal, and is also used to accumulate the periodically inverted reflected signal for a pres...
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The application discloses a standing wave detection method, device and device with storage function. The method includes: generating a standing wave detection signal which is periodically positive and negative alternately, generating a transmission signal after superimposing the baseband signal, and transmitting the transmission signal through the transmission channel. Sending, receiving the reflected signal generated during the transmission of the transmitted signal, and periodically inverting the reflected signal, and accumulating the periodically inverted reflected signal for a preset number of times, so that the accumulated reflected signal includes the The signal-to-noise ratio of the reflected signal of the standing wave detection signal and the reflected signal of the baseband signal is greater than a preset threshold, and finally the system standing wave ratio is determined by using the accumulated reflected signal. Through the above method, the present application can improve the signal-to-noise ratio faster and improve the efficiency of standing wave detection.
Description
technical field [0001] The present application relates to the technical field of communication, in particular to a standing wave detection method, device and device with a storage function. Background technique [0002] In the existing communication system, standing wave detection is mainly used to judge the connection status of the antenna feeder system to ensure that the channel connection from the base station to the air port is normal, and a good connection can effectively radiate energy from the antenna port. FDR (Frequency Domain Reflectometer, Frequency Domain Reflectometer) technology is a commonly used online standing wave detection method. However, the existing FDR standing wave detection method is only suitable for broadband signals. For narrowband signals, the existing FDR standing wave detection method has a slow speed of improving the signal-to-noise ratio and low standing wave detection efficiency. Contents of the invention [0003] The main technical probl...
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IPC IPC(8): H04W24/08
CPCH04W24/08
Inventor 毛孟达吴宏星杜建雄
Owner HYTERA COMM CORP