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

Method and device for signal power estimation, and receiver

A signal power and signal technology, applied in the field of signal processing, can solve problems such as large hardware overhead

Active Publication Date: 2017-10-24
BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hardware overhead of estimating the above signal power is relatively large

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
  • Method and device for signal power estimation, and receiver
  • Method and device for signal power estimation, and receiver
  • Method and device for signal power estimation, and receiver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] In practical applications, the wireless signal received by the antenna of the receiver is amplified, filtered and other processing operations by the receiving amplifier, and the I / Q complex signal is output. Wherein, the I signal is the real part of the wireless signal, and the Q signal is the imaginary part of the wireless signal. The I / Q complex signal is input to the analog-to-digital converter for sampling, and then converted into a corresponding digital signal. When performing automatic gain control, it is usually necessary to estimate the power of the digital signal processed by the analog-to-digital converter to determine the required gain of the receiving amplifier.

[0052] At present, when estimating the power of the digital signal processed by the analog-to-digital converter, the modulus operation is usually performed on each sampling point of the digital signal, and then the square of the modulus value of each sampling point is accumulated, and finally the a...

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 method and a device for signal power estimation and a receiver are provided. The method comprises the following steps: performing modular operation on each sampling point of a signal to get a module value corresponding to each sampling point; implementing the following operations on each section of signal to get an average power value corresponding to each section of signal; accumulating the module values corresponding to N sampling points in the mth section of signal to get a module value accumulation result of the mth section of signal, wherein m<=M, and m is a positive integer; respectively converting the value of N and the module value accumulation result of the mth section of signal into corresponding log values, and calculating the average power value of the mth section of signal by means of subtraction; and calculating the estimated power value of the signal according to the average power value corresponding to each section of signal. By using the method, the hardware overhead in the process of signal power estimation can be reduced.

Description

technical field [0001] The present invention relates to the technical field of signal processing, in particular to a method and device for estimating signal power, and a receiver. Background technique [0002] In a communication system, since the wireless channel is often affected by multipath fading and Doppler frequency shift, the strength of the wireless signal received by the receiver will change in real time. In order to improve the quality of the received signal and the performance of fixed-point processing, the receiver usually needs to use a receiving amplifier to amplify the received wireless signal so that the power of the received wireless signal is maintained near the target power. [0003] In practical applications, most receivers use automatic gain control to dynamically adjust the gain of the receiving amplifier, and automatic gain control needs to estimate the power of the currently received signal first, and then calculate the power of the currently received...

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 Applications(China)
IPC IPC(8): H04B17/327
CPCH04B17/327
Inventor 周玉泽翁毅
Owner BEIJING SPREADTRUM HI TECH COMM TECH CO LTD