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

A narrow pulse automatic gain adjustment method and system

An automatic gain adjustment and narrow pulse technology, which is applied in the direction of gain control, amplification control, electrical components, etc., can solve the problem that the automatic gain adjustment of narrow pulse signals cannot be adjusted effectively, so as to reduce equipment maintenance costs, improve work efficiency, and improve The effect of system fitness

Active Publication Date: 2016-04-20
北京华清瑞达科技有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects in the prior art, the present invention solves the problem that the narrow pulse signal cannot be effectively adjusted when performing automatic gain adjustment

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
  • A narrow pulse automatic gain adjustment method and system
  • A narrow pulse automatic gain adjustment method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] According to the shortcomings of traditional AGC control on narrow pulse signal failure, this program proposes an AGC control method that adopts high-speed AD sampling and performs loopback control through FPGA. Carry out orthogonal transformation on it, use I and Q two channels to calculate the modulus of the signal, and adjust the electronically adjustable attenuator according to the modulus until the output is stable at an appropriate power. This method can use digital technology to solve the problem of AGC loopback control when the signal is a narrow pulse.

[0018] figure 1 It is a schematic flow chart of a narrow pulse automatic gain adjustment method of the present invention. Such as figure 1 As shown, the method mainly includes the following steps:

[0019] S101: Perform initial setting of the electronically adjustable attenuator;

[0020] Set the attenuation value of the ESC attenuator (HMC972) to the maximum value, and set the rated value range; the rated ...

Embodiment 2

[0033] figure 2 It is a composition diagram of a narrow pulse automatic gain adjustment system of the present invention. Such as figure 2 as shown,

[0034] Including: a preliminary setting unit 201, a signal modulus acquisition unit 202 and a judgment adjustment unit 203, wherein,

[0035] The preliminary setting unit 201 is used to set the attenuation value of the electronically adjustable attenuator to the maximum value and set the rated value range;

[0036] The signal modulus acquisition unit 202 is used to acquire a narrow pulse signal through a high-speed analog / digital converter AD to acquire a digital narrow pulse signal; the acquired digital narrow pulse signal is obtained by orthogonal transformation to obtain two-way digital signals of I and Q , and obtain the signal modulus value according to the two digital signals of I and Q;

[0037] The judgment and adjustment unit 203 is used to judge whether the signal modulus falls into the rated value range, if so, g...

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 discloses a method for the automatic gain regulation of narrow pulses. The method comprises: setting the attenuation value of an electrically controlled attenuator to be a largest value and setting a rating value range; through a high-speed analog-to-digital converter AD, acquiring narrow pulse signals and obtaining acquisition digital narrow pulse signals; obtaining I digital signals and Q digital signals by subjecting the acquisition digital narrow pulse signals into orthogonal transformation, and obtaining signal modulus values according to the I signals and the Q signals; and determining whether the signal modulus values fall into the rating value range, and according to a determination result, regulating the attenuation value of the electrically controlled attenuator until the signal modulus values fall into the rating value range. By using the method and system, the problem of incapability of effective regulation when the narrow pulse performs automatic gain regulation can be solved, and the automatic gain regulation of input signals can be ensured to be finished under the condition that the input signals are narrow pulses so that the regulation of automatic gain control circuit can be rapidly finished, the system adaptability is improved, the equipment maintenance cost is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of radar radio frequency simulation, in particular to a narrow pulse automatic gain adjustment method and system. Background technique [0002] In the signal processing chain, in order to ensure the reliability and safety of the system, and not burn the expensive AD sampling device because the signal is too large, it is generally necessary to add an automatic gain control circuit before the AD sampling circuit to ensure the signal input to the AD sampling circuit Power is a constant value. The traditional automatic gain control (AGC) is realized by detecting the input signal and adjusting the electric attenuator by judging the detected pulse amplitude. In the process of automatic gain control, first attenuate the ESC attenuator to the maximum, and gradually reduce the attenuation according to the detection data until the output stabilizes at a suitable power. However, if the input pulse is too narrow, the ...

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): H03G3/20
Inventor 孙亚光宋兵兵朱骏
Owner 北京华清瑞达科技有限公司