Unlock instant, AI-driven research and patent intelligence for your innovation.

Gain adjustment control method and device

A technology of gain adjustment and control method, which is applied in the direction of gain control, amplification control, electrical components, etc., can solve the problem of low accuracy of gain adjustment control, and achieve the effect of precise adjustment and improved control accuracy

Pending Publication Date: 2018-04-20
上海迦美信芯通讯技术有限公司 +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the embodiment of the present application is to provide a gain adjustment control method and device to solve the above-mentioned problem that the control accuracy of the gain adjustment of the analog AGC circuit is not high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gain adjustment control method and device
  • Gain adjustment control method and device
  • Gain adjustment control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The embodiment of the present application provides a gain adjustment control method, such as figure 1 Shown is a flow chart of the gain adjustment control method, the method comprising:

[0048] Step S101, performing analog-to-digital conversion on the satellite signal output by the received programmable gain amplifier, and obtaining a high-level count value of the amplitude of the satellite signal after analog-to-digital conversion;

[0049] Step S102, according to the count value and the preset gain strategy, determine the gain strategy corresponding to the count value;

[0050] Step S103, adjusting the gain of the programmable gain amplifier based on the gain strategy.

[0051]In the embodiment of this application, the execution subject is a digital controller.

[0052] In the above step S101, the analog satellite signal is converted into a digital satellite signal through an analog-digital converter (Analog-Digital Converter, ADC) for the satellite signal output b...

Embodiment 2

[0074] The embodiment of the present application provides a gain adjustment control device, such as image 3 Shown is a schematic structural diagram of the gain adjustment control device provided in Embodiment 2 of the present application, including:

[0075] The obtaining module 201 is used to perform analog-to-digital conversion on the satellite signal output by the programmable gain amplifier received, and obtain the high-level count value of the satellite signal amplitude after the analog-to-digital conversion;

[0076] A determination module 202, configured to determine a gain strategy corresponding to the count value according to the count value and a preset gain strategy;

[0077] An adjustment module 203, configured to adjust the gain of the programmable gain amplifier based on the gain strategy.

[0078] The acquisition module 201 is configured to: count the count value of the high level of the satellite signal amplitude after the analog-to-digital conversion within ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a gain adjustment control method and a gain adjustment control device. The method comprises the steps of performing analog-to-digital conversion on a satellite signal output bya received programmable gain amplifier, to acquire a count value of the high level of the converted satellite signal amplitude subjected to analog-to-digital conversion; determining a gain strategy corresponding to the count value according to the count value and a preset gain strategy; and performing gain adjustment on the programmable gain amplifier based on the gain strategy. According to the method, the satellite signal is converted into the digital signal from the analog signal, so that the problem that in a traditional analog AGC circuit, a charge pump generates voltage ripples and thusthe gain adjustment is not high in control accuracy is solved, the programmable gain amplifier can be more accurately adjusted based on the gain strategy corresponding to the count value according tothe count value of the high level of the satellite signal amplitude and the preset gain strategy, and the control accuracy of the gain adjustment is improved.

Description

technical field [0001] The present application relates to the field of gain adjustment control, in particular, to a method and device for gain adjustment control. Background technique [0002] The navigation receiver is an instrument that receives the satellite signals of the global positioning system and determines the space position on the ground. Due to the influence of external environment changes and interference, the strength of the received satellite signals varies greatly. The machine needs to be able to automatically adjust the gain according to the strength of the received satellite signal, so that the satellite signal after gain processing can meet the needs of subsequent analysis and processing. [0003] At present, an analog automatic gain control circuit (Automatic gain control, AGC) is generally used to automatically adjust the receiver gain, that is, the current generated by the charge pump in the automatic gain control circuit is controlled by the strength o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04B1/12H03G3/30
CPCH03G3/3042H04B1/123Y02D30/70
Inventor 李娟谢婷婷鲍荣涛倪文海徐文华田磊王勇周业成
Owner 上海迦美信芯通讯技术有限公司