Ultra wide band adaptive fluctuation compensation method and system
A fluctuation compensation and self-adaptive technology, applied in baseband systems, baseband system components, transmission systems, etc., can solve problems such as low operation accuracy, inability to ensure accuracy, and difficulty in debugging.
Active Publication Date: 2017-06-13
COMBA TELECOM SYST CHINA LTD
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Problems solved by technology
However, with the sharp increase in the bandwidth of the mobile communication carrier signal, it is difficult to debug, and manual adjustment cannot ensure accuracy
The traditional in-band fluctuation compensation method has the disadvantage of low operational accuracy
Method used
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[0033] In one embodiment, a UWB adaptive fluctuation compensation method, such as figure 1 shown, including the following steps:
[0034] Step S110: Carry out a frequency sweep on the system, collect the frequency response of the system in the entire working frequency range, and obtain in-band fluctuation data.
[0035] Specifically, the system may be a digital communication system such as a digital repeater system and an optical distribution system. The method of sweeping and collecting the frequency response to the system is not unique. In this embodiment, a frequency sweeping signal can be added at the input of the system, and the output of the system is connected to a spectrum analyzer. ATS (Automatic Test System, Automatic Test System) is used to automatically The frequency response of the system in the entire working frequency range is collected to obtain in-band fluctuation data. ATS refers to a system that automatically measures, processes data, and displays or outpu...
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The invention relates to an ultra wide band adaptive fluctuation compensation method and system. The method comprises the following steps: performing frequency sweeping on the system, and collecting frequency response of the system within the whole working frequency range to obtain in-band fluctuation data; when a target fluctuation compensation filter of the system is a complex filter, transferring frequency points of the in-band fluctuation data into a base band, performing negation to obtain in-band frequency response of the complex filter, and then obtaining a target fluctuation compensation filter coefficient; when the target fluctuation compensation filter is a real filter, transferring the frequency points of the in-band fluctuation data into a first Nyquist zone of digital intermediate frequency, performing negation to obtain the in-band frequency response of the real filter, and then obtaining the target fluctuation compensation filter coefficient; and configuring the target fluctuation compensation filter coefficient in the target fluctuation compensation filter. A fluctuation compensation filter with frequency response being opposite to the in-band fluctuation of the system is added to counteract the in-band fluctuation of the system, thereby improving the smoothness in the frequency band of each carrier signal and improving the operating accuracy.
Description
technical field [0001] The invention relates to the technical field of mobile communication, in particular to an ultra-wideband adaptive fluctuation compensation method and system. Background technique [0002] With the development of mobile communication technology, users have higher and higher requirements for mobile communication, which requires improving the performance of mobile communication systems or devices to meet the requirements. In an actual system, since the components have different responses to signals of different frequencies, when the corresponding input power is equal, the output power at different frequency points is often not equal, resulting in fluctuations in the frequency domain. [0003] The in-band fluctuation of the digital communication system is mainly caused by the analog part of the communication link, such as duplexer, analog amplifier, surface acoustic filter and other devices. If the whole system design does not use devices with better in-ba...
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Login to View More IPC IPC(8): H04L25/03
CPCH04L25/03159H04L25/03821
Inventor 欧秀平吕辉
Owner COMBA TELECOM SYST CHINA LTD