Compression sampling analog-to-digital converter using sampling and quantification circuit

An analog-to-digital converter and compression sampling technology, applied in the direction of analog-to-digital conversion, code conversion, instruments, etc., can solve the problems of complex overall structure, loop filter mismatch, quantizer mismatch, etc., to reduce complexity , reduce mismatch, reduce the effect of various errors

Active Publication Date: 2016-06-29
TSINGHUA UNIV
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, each channel of this structure requires a quantizer, so the overall structure i

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
  • Compression sampling analog-to-digital converter using sampling and quantification circuit
  • Compression sampling analog-to-digital converter using sampling and quantification circuit
  • Compression sampling analog-to-digital converter using sampling and quantification circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The compressed sampling analog-to-digital converter that adopts the sampling quantization circuit that the present invention proposes, such as Figure 4 As shown, it includes N random sampling branches and a quantizer, and each random sampling branch is composed of N random sampling switches, N analog integrators, N output control switches, quantizers, random sampling control signal generators and output Composed of clocks, the input ends of the N analog integrators are respectively connected to the analog signal input through N random sampling switches, and the output ends of the N analog integrators are respectively connected to the input of the quantizer through N output control switches. The output terminals of the quantizer output digital signals; the N random sampling switches are respectively connected to the random sampling control signal generator, and the N output control switches are respectively connected to the output clock.

[0028] In the compressed sampl...

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 sampling and quantification circuit used for a compression sampling analog-to-digital converter and belongs to the field of mixed signal integration circuit design technology. According to the invention, a signal processing procedure including signal observation, error estimation, signal calibration and signal restoration for error correction and a sampling and quantification circuit realization structure with multi-way parallel sampling, simulation domain integration and signal quantization device quantification are provided. The sampling and quantification circuit realization structure successively inputs all simulation sampling and integration results into the same quantification device, so a mismatching problem in a multi-way quantification process is effectively reduced; complexity in realization of a compression sampling analog-to-digital converter system is reduced; and the sampling and quantification circuit is designed with modules, so independence and universality of designing of all modules are improved.

Description

technical field [0001] The invention relates to a compressed sampling analog-to-digital converter using a sampling quantization circuit, belonging to the technical field of mixed signal integrated circuit design. Background technique [0002] The basic idea of ​​an analog-to-digital converter (Analog-to-Digital Converter, hereinafter referred to as ADC) is to quantize a continuous analog signal within a certain range through the steps of sampling, holding, quantization, and encoding in a specific way, and the quantization result It is represented by a set of specific digital codes and used as the input signal of the digital processing system. The traditional analog-to-digital converter is limited by the Nyquist sampling theorem, and the signal must be sampled at a frequency higher than twice the processing signal bandwidth. High requirements, subject to factors such as technology, the speed and accuracy of the current quantizer cannot match the information requirements proc...

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): H03M1/54H03M1/38
CPCH03M1/38H03M1/54
Inventor 李冬梅韩晨曦魏经纬
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap