scholarly journals A relaxation-oscillator-based interface for high-accuracy ratiometric signal processing of differential-capacitance transducers

1998 ◽  
Vol 47 (1) ◽  
pp. 11-15 ◽  
Author(s):  
K. Mochizuki ◽  
K. Watanabe ◽  
T. Masuda ◽  
M. Katsura
Keyword(s):  
Signal Processing ◽  
Relaxation Oscillator ◽  
High Accuracy ◽  
Differential Capacitance ◽  
Capacitance Transducers

Enhancing sensitivity for emitter geolocation

2012 ◽  
Vol 4 (2) ◽  
pp. 129-135 ◽  
Author(s):  
Göran Tengstrand ◽  
Peter Hultman ◽  
Jean-François Grandin ◽  
Dario Benvenuti ◽  
Börje Andersson ◽  
...  
Keyword(s):  
Signal Processing ◽  
High Accuracy ◽  
Search Pattern ◽  
Low Latency ◽  
Time Of Arrival ◽  
Antenna Gain ◽  
Sufficient Data ◽  
Angle Of Arrival ◽  
Data Link ◽  
Very High

Angle of arrival (AOA), time of arrival (TOA), and frequency of arrival (FOA) can be measured for a signal from multiple platforms. By combining such measurements it is possible to obtain high-accuracy emitter position estimates. This requires a data link with low latency and sufficient data-rate, and synchronization of the platforms in space, time, and search pattern. Typically several of the platforms will have to make their measurements in the radar sidelobes that require very high receiver sensitivity. This paper focuses on discussing how the sensitivity can be improved using antenna gain or signal processing.

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