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Automatic gain control method of high-speed frequency hopping

An automatic gain control, high-speed technology, applied in the field of receivers, can solve the problems of AGC control speed and other problems, and achieve the effect of ensuring robustness, meeting time requirements, and improving control accuracy

Active Publication Date: 2010-11-10
CHINA ELECTRONICS TECH CYBER SECURITY CO LTD
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-speed frequency hopping automatic gain control method that improves control accuracy and control speed, and solves the AGC control speed and precision problems of broadband high-speed frequency hopping

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Embodiment Construction

[0019] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0020] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0021] A high-speed frequency-hopping automatic gain control method, the method is:

[0022] (1) The low-speed synchronous signal and the high-speed data communication signal are received in separate channels, and the low-speed synchronous signal measures the signal power during the synchronous reception process, and sets the AGC initial value;

[0023] (2) The baseband demodulates the low-speed synchronization signal. If it cannot be demodul...

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Abstract

The invention discloses an automatic gain control method of high-speed frequency hopping, which comprises the following steps that: a low-speed synchronous signal and a high-speed data communication signal are received by different channels, and the low-speed synchronous signal measures signal power in the process of synchronous receiving and sets an AGC initial value; a baseband demodulates the low-speed synchronous signal, if not, the synchronization fails, then the signal is judged as an interference signal, the AGC initial value is adjusted according to the power of the signal, if the synchronization is successful, the signal is judged as a target signal, and the AGC initial value is adjusted according to the power of the signal; and after the synchronization of the low speed synchronous signal is successful, the channel is switched to the receiving channel of the high-speed data communication signal. The invention improves control accuracy and control speed.

Description

technical field [0001] The invention relates to a receiver, in particular to a high-speed frequency-hopping automatic gain control method for the receiver. Background technique [0002] In the existing receiver AGC technology, the synchronous signal and the data communication signal are received in the same channel instead of separate channels. During the reception of the synchronization signal, the AGC needs to be adjusted. The AGC may respond incorrectly to interfering signals and the synchronization robustness is reduced. For a modulated signal with a peak-to-average ratio, adjusting the AGC during signal transmission will cause secondary modulation of the signal. [0003] Most of the existing receiver AGC technologies are aimed at fixed-frequency communication and can meet the needs of narrow-band frequency hopping. If it is applied to broadband frequency hopping communication, due to the frequency selective attenuation of the channel and high-speed frequency hopping,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/52H04B1/713
Inventor 苏旸白灵刘强丁建峰欧兵罗宇周冰代宪菊康弘俊
Owner CHINA ELECTRONICS TECH CYBER SECURITY CO LTD
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