Title :
Estimation and detection in the presence of ringing noise
Author :
Jameson, Brant ; Manduchi, Roberto
Author_Institution :
Dept. of Comput. Eng., UC Santa Cruz, Santa Cruz, CA, USA
Abstract :
To minimize size and cost, most air coupled ultra sound range systems are designed as mono-static systems, where the same transducer is used for both transmission and reception. Mono-static systems suffer from a type of self interference which is referred to as ringing noise or ring-down. Ringing noise may occlude echoes from nearby targets, compromising the detection performance of the system at short ranges. This paper describes a simple method for detecting target returns embedded in ringing noise and compares the performance of the proposed method to a more popular CFAR technique.
Keywords :
acoustic receivers; acoustic signal detection; acoustic signal processing; acoustic wave interference; echo suppression; ultrasonic transducers; ultrasonic transmission; air coupled ultrasound range system; echo; monostatic system; ring-down; ringing noise detection; ringing noise estimation; self-interference; target return detection; ultrasound reception; ultrasound transducer; ultrasound transmission; Acoustics; Impedance matching; Noise; Program processors; Receivers; Sensitivity; Transducers;
Conference_Titel :
Ultrasonics Symposium (IUS), 2010 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-0382-9
DOI :
10.1109/ULTSYM.2010.5935877
