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Gain control method, device and circuit based on receiver and receiver

A gain control and receiver technology, applied in the field of communication, can solve the problem that the signal cannot be guaranteed to meet the requirements of subsequent digital baseband signal processing, etc., and achieve the effect of solving poor stability

Active Publication Date: 2020-07-31
南京中科晶上通信技术有限公司
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Problems solved by technology

Therefore, there is a problem that the frequency adaptive gain control of the input signal cannot be used. At the same time, there is a problem that the signal processed by the subsequent digital baseband signal cannot be guaranteed to meet the requirements of the subsequent digital baseband signal processing.

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  • Gain control method, device and circuit based on receiver and receiver
  • Gain control method, device and circuit based on receiver and receiver
  • Gain control method, device and circuit based on receiver and receiver

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0020] It should be noted that although the functional modules are divided in the schematic diagram of the device, and the logical sequence is shown in the flowchart, in some cases, it can be executed in a different order than the module division in the device or the flowchart in the flowchart. steps shown or described.

[0021] In order to make the purpose, technical solutions and advantages of the application clearer, the following will further describe the implementation of the application in detail in conjunction with the accompanying drawings.

[0022] According to an embodiment of ...

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Abstract

The application discloses a gain control method, device and circuit based on a receiver and a terminal. The method comprises the following steps: performing gain control processing on an input signalaccording to a predetermined gain parameter to obtain a to-be-processed signal after gain adjustment; carrying out frequency mixing processing on the to-be-processed signal to obtain a corresponding carrier I-path signal and a corresponding carrier Q-path signal; respectively performing analog-to-digital conversion processing on the carrier I-path signal and the carrier Q-path signal to obtain a digital I-path signal and a digital Q-path signal; performing peak detection processing on the digital I-path signal and the digital Q-path signal, and determining whether gain parameters need to be adjusted or not according to a peak detection processing result; and if not, performing gain fine adjustment control on the digital I-path signal and the digital Q-path signal. According to the embodiment of the application, through twice gain control processing, the problem of poor signal stability after gain processing caused by multipath fading or receiver distance and the like of signals in theprior art is solved.

Description

technical field [0001] The present application relates to the field of communication technology, in particular to a receiver-based gain control method, device, circuit and receiver. Background technique [0002] In the process of communication signal propagation in space, due to multipath fading, receiver distance changes and other reasons, the signal strength will cause signal amplitude instability, and the signal dynamic range exceeds the dynamic range that can be processed by digital baseband signal processing and other changes. This change will cause problems such as signal loss and performance degradation in the subsequent digital baseband signal processing (such as demodulation processing). Therefore, gain control is needed to solve such problems. [0003] The relevant receiver performs gain control only once, and the gain control is performed according to a fixedly configured gain parameter. Therefore, there is a problem that the adaptive gain control cannot be perf...

Claims

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Application Information

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IPC IPC(8): H03M3/02
CPCH03M3/02Y02D30/70
Inventor 邓红梅王飞赵峰
Owner 南京中科晶上通信技术有限公司
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