Dissertation > Excellent graduate degree dissertation topics show
The radar jamming sidelobe canceller implementation
Author: LinRenChun
Tutor: WangXueGang
School: University of Electronic Science and Technology
Course: Signal and Information Processing
Keywords: SLC vsNLMS aaQRD-LS 2acDMI ENDinfo
CLC: TN974
Type: Master's thesis
Year: 2011
Downloads: 34
Quote: 0
Read: Download Dissertation
Abstract
|
Power of the active interferences received by antenna’s sidelobes may be much more greater than power of the useful echo signals received by antenna’s mainlobe in RADAR anti-interference, which decreases the signal detection performance. In general, adaptive sidelobe cancellation (ASLC) techniques are used in engineering, which forme beam pattern nulls in the active interferences’incident directions.The thesis researched the 2 auxiliary channels narrowband sidelobe canceller’s implementation algorithms:1. Obtained 3 main influencing aspects of LMS algorithm’s convergence behavior by analyzing. Hence proposed a variable step NLMS (vsNLMS) algorithm, which adjusts the step factor based on a non-linear transformation of estimation error.2. Expounded a block processing technique and look-ahead technique based annihilation-ahead QRD-LS (aaQRD-LS) algorithm. Proposed aaQRD-LS algorithm’s block pipelining fine-grain pipelined topology by the enlightenment of aaQRD-LS algorithm’s overlapped block pipelining fine-grain pipelined topology.3. For the auto-correlation matrix of auxiliary channels’input vector is a 2×2 dimensional matrix in this project, the natural idea is calculat it’s inverse matrix directly.Which results in a 2 auxiliary channels DMI (2acDMI) algorithm. aaQRD-LS algorithm (block pipelining fine-grain pipelined topology), 2acDMI algorithm have engineering values by comparing algorithms’cancellation performance, implementation complexity, etc..
|
Related Dissertations
- A Study on Syndicated Loan from Small Loan Companies and Commercial Banks,F832.4
- Expression of Chemokine Receptor CCR7 and Chemonkine SLC, ELC and Its Association with Lymph Node Metastasis in Breast Carcinoma,R737.9
- Prokaryotic Expression and Characterization of Recombinant VEGF-SLC Protein Targeting to Tumor,R392-33
- Gene Cloning，Expression of the Human Chemokine SLC and the Study on Immuogenicity of MCF-7,R392.1
- Design of Phased Array Radar SLC System by Selecting Partial Antennas,TN974
- Gene Cloning, Expression of the Human Chemokine SLC and Its Functional Analysis,Q78
- Study on the Prior Filtering and Oversampling of INSAR Images,TN958
- Experimental Research for Mechanism of NK1.1T Lymphocyte Homing to Liver after Liver Transplantation,R657.3
- Construction and Expression of SLC-anti CEA ScFv Bifunctional Antibody Fusion Protein,Q819
- Spaceborne interferometric synthetic aperture radar of a number of key technologies Algorithm,TN958
- Study of Chemotactic Antigen Gene Vaccine,R392
- Induction of Effective Antitumor Immune Responses by a Novel DNA Vaccine Encoding Chemokine and Multiepitope of Prostate Tumor Associate Antigens,R737.25
- The Mechanism of Secondary Lymphoid-tissue Chemokine Mediated Pathologic Lymphocyte Homing in Rats with Ulcerative Colitis,R574.62
- Phased array pulse compression radar anti-jamming performance analysis,TN974
- OFDM-based low probability of intercept radar system research,TN974
- Resource allocation based radar jamming Penetration Trajectory Planning Research,TN974
- Integrated high-speed communications technology radar systems research,TN974
- CNC high -speed scanning technology research YIG filter,TN974
- Radar jamming and interference covering optimal allocation of resources,TN974
- Study on the Technique of Spaceborne Radar Jamming and Simulation,TN974
- Study on Characteristics of Outer Space Chaff and Anti-Chaff Technology for Radar,TN974
CLC: > Industrial Technology > Radio electronics, telecommunications technology > Electronic warfare ( jamming and anti - jamming ) > Radar electronic countermeasures
© 2012 www.DissertationTopic.Net Mobile
|