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

Multichannel digital automatic gain control method and controller

An automatic gain control, multi-channel technology, used in gain control, amplification control, instruments, etc.

Inactive Publication Date: 2004-09-15
WUHAN UNIV
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in systems such as phased array radar, phased array sonar, multi-beam laser or infrared, it is required to automatically control the consistency of multiple channel gains. Obviously, the single channel automatic gain control method and control device cannot meet this requirement. Require

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
  • Multichannel digital automatic gain control method and controller
  • Multichannel digital automatic gain control method and controller
  • Multichannel digital automatic gain control method and controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The control process of the multi-channel digital automatic gain control method provided by the present invention is: at first set the preset channel number n, the preset output gain Gi of each channel in the digital signal processor or the microprocessor through the input device (i=1, 2...n), the speed Si (i=1, 2,...n) and precision Ei (i=1, 2,...n) to reach the preset output gain parameters, or first set The number of channels n, the predetermined channel CHn, the speed Si (i=1, 2, ... n) and the precision Ei (i = 1, 2, ... n) parameters to reach the output gain of the predetermined channel, At the same time, the peak value Pi (i=1, 2,...n) and sampling frequency of the channel output signal are given; then the instantaneous voltage or current signal output by each channel is collected, and each signal is converted into a digital signal. When the digital signal of each channel After the instantaneous value XiEi, the control quantity Ki(m) of the gain amplifier=Ki(m-1)+...

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

A multichannel digital automatic gain control method and apparatus thereof are provided in present invention differing from the existing single channel control method and apparatus. The apparatus is provided with two or more than two channel circuits and a gain amplifier corresponding to the channel circuits. A digital signal processor or a microprocessor is further comprised in the apparatus by which the output gain of the channels is controlled based on a plurality of optional instructions and parameters which are stored in the digital memory of the digital signal processor or microprocessor. Optimally controlling of the output gain of the channels is ensured by utilizing arithmetic of control quantity iteration when channel precision can not achieve the requirement. Furthermore, the output gain of each channel reaching the requirement of speed and precision of predermined gain is also ensured.

Description

technical field [0001] The invention relates to an automatic gain control method and a control device using the control method, in particular to a multi-channel digital automatic gain control method and control device controlled by a digital calculator. Background technique [0002] Existing automatic gain control methods and control devices are all single-channel automatic gain control methods and devices. device. At present, in systems such as phased array radar, phased array sonar, multi-beam laser or infrared, it is required to automatically control the consistency of multiple channel gains. Obviously, the single channel automatic gain control method and control device cannot meet this requirement. Require. Contents of the invention [0003] For this reason the purpose of the present invention is to provide a kind of multi-channel digital automatic gain control method and control device, this control method and cont...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/34H03G3/30
Inventor 田建生吴世才杨子杰石振华
Owner WUHAN UNIV