Anisotropy in ocean scattering of bistatic radar using signals of opportunity

2011 ◽  
Author(s):  
Rashmi Shah ◽  
James L. Garrison ◽  
Michael S. Grant
Keyword(s):  
Bistatic Radar ◽  
Signals Of Opportunity

Bistatic Radar Equation for Signals of Opportunity Revisited

2018 ◽  
Vol 56 (4) ◽  
pp. 1959-1968 ◽  
Author(s):  
Alexander G. Voronovich ◽  
Valery U. Zavorotny
Keyword(s):  
Bistatic Radar ◽  
Signals Of Opportunity ◽  
Radar Equation

Ranging technology using signals of opportunity of non-cooperative communication satellites

2020 ◽  
pp. 1-13
Author(s):  
Yuanyuan Gao ◽  
Yu Hua ◽  
Yu Xiang ◽  
Changjiang Huang ◽  
Shanhe Wang ◽  
...  
Keyword(s):  
Cooperative Communication ◽  
Estimation Algorithm ◽  
Time Difference ◽  
Difference Measurement ◽  
Test Platform ◽  
Positioning Technique ◽  
And Performance ◽  
Navigation Signals ◽  
To Receive ◽  
Signals Of Opportunity

Abstract The positioning technique employing the ubiquitous signals of opportunity of non-cooperative satellites does not send special navigation signals, instead it passively receives satellite signals as noise, presenting advantages of concealment and difficulty for potential attackers. Thus, this study investigates the ranging principle and model using non-cooperative communication satellites and a time difference estimation algorithm. The technology of time difference measurement under non-cooperative observation mode was determined and simulated. A test platform for time difference measurement was built to receive the signal from an unknown geostationary Earth orbit communication satellite and verify the ranging feasibility and performance. The ranging accuracy was found to be smaller than 6 m, as demonstrated by experimental data, which shows the viability of the proposed positioning technique for ranging technology.

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