Doppler frequency cancellation based full digital main carrier tracking method
A technology of Doppler frequency and Doppler frequency difference, which is applied in the field of measurement and control communication, can solve the problems of frequency residual, difficulty in realization, and inability to completely eliminate Doppler frequency difference, and achieve Doppler frequency difference elimination, method Intuitive and easy effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0020] Below in conjunction with accompanying drawing, introduce content of the present invention in detail:
[0021] Fig. 2 is a general realization block diagram of the main carrier tracking method based on Doppler frequency cancellation. as shown in picture 2. The receiver receives the USB measurement and control band-pass analog signal with Doppler frequency difference, and after passing through the analog-to-digital converter, quadrature down-converter, main carrier capture device and other devices in turn, most of the Doppler frequency difference is eliminated. Poor USB measurement and control digital complex baseband signal. The complex baseband signal passes through the spectral signal former, and two channels of spectrums are left-right symmetrical about the zero frequency. output after low-pass filtering. Finally, the two output signals pass through the Doppler frequency canceller to obtain a USB measurement and control digital complex baseband signal that complet...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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