Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

DDS (Direct Digital Synthesis) signal generation system and method

A frequency synthesis and generation system technology, applied in the computer field, can solve problems such as poor flexibility, high system cost, and inability to divisible signals, and achieve the effect of low system cost, high flexibility, and few input parameters

Pending Publication Date: 2017-09-15
WUXI HAIYING CAL TEC MARINE TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the flexibility is poor
[0009] In addition, when some signal period and clock period are not divisible by the output signal, the above method realizes the generation of DDS signal wirelessly
[0010] Therefore, for DDS signals of different frequencies, the system cost of the above method is relatively 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
  • DDS (Direct Digital Synthesis) signal generation system and method
  • DDS (Direct Digital Synthesis) signal generation system and method
  • DDS (Direct Digital Synthesis) signal generation system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0049] The AR model is also called an autoregressive model. The establishment of the signal model is completed through the recursion of the input signal sequence, and thus the signal generation, processing and other functions are completed. as follows:

[0050] Y(n)=A1*Y(n-1)+A2*Y(n-2)+...Am*Y(n-m)

[0051] Among them, A1, A2,...Am, etc. are different system constants, Y(n), Y(n-1), Y(n-m) are...

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 relates to a DDS (Direct Digital Synthesis) signal generation system and method, and belongs to the field of computer technologies. Same-frequency orthogonal DDS signals can be generated by only utilizing a second-order AR model according to the DDS signal generation method. The DDS signal generation method is applicable to any frequency, is low in system cost, extremely small in number of input parameters, extremely high in flexibility and particularly applicable to orthogonal down conversion for sonar signals with the frequency being adjusted at any time, and has great popularization values.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a DDS signal generation system and method. Background technique [0002] With the continuous development of oceanographic measurement technology, multi-beam echo sounders have been widely used for their high sounding efficiency, good measurement effect, and no omission measurement. Therefore, the application range of multi-beam echo sounder is constantly expanding. On the basis of importing a large number of foreign multi-beam echo sounders and widely using them, our country has accumulated a lot of experience and technology in application and technology. In recent years, the research and development of domestic multi-beams has also been gradually carried out. [0003] In the process of multi-beam signal processing, the orthogonal down-conversion signals of multiple channels of multi-beam must be obtained first. This is generated by mixing with a phase quadrature...

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): H03K3/02H03K5/01G06F1/02
CPCH03K3/02H03K5/01G06F1/022
Inventor 郭榕
Owner WUXI HAIYING CAL TEC MARINE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com