TY - GEN
T1 - Waveform design for sequential detection with subspace interference
AU - Teitel, Moti
AU - Tabrikian, Joseph
PY - 2012/10/12
Y1 - 2012/10/12
N2 - This paper addresses the problem of adaptive waveform design for target detection using sequential hypothesis testing. In the proposed scheme, the transmit waveform is determined based on previous measurements. The sequential framework is especially adequate in cases of composite hypothesis testing, where the different hypotheses depend on unknown parameters. With each new observation, additional statistical information regarding the unknown parameters is obtained with decreasing uncertainty. We derive a sequential test based on the generalized likelihood ratio test (GLRT), which is applied for target detection in the presence of subspace interference, and propose a waveform design scheme based on the Kullback-Leibler divergence. It is shown by simulations that the proposed scheme requires fewer observations compared to non-adaptive waveform transmission in order to achieve desired error rates.
AB - This paper addresses the problem of adaptive waveform design for target detection using sequential hypothesis testing. In the proposed scheme, the transmit waveform is determined based on previous measurements. The sequential framework is especially adequate in cases of composite hypothesis testing, where the different hypotheses depend on unknown parameters. With each new observation, additional statistical information regarding the unknown parameters is obtained with decreasing uncertainty. We derive a sequential test based on the generalized likelihood ratio test (GLRT), which is applied for target detection in the presence of subspace interference, and propose a waveform design scheme based on the Kullback-Leibler divergence. It is shown by simulations that the proposed scheme requires fewer observations compared to non-adaptive waveform transmission in order to achieve desired error rates.
UR - http://www.scopus.com/inward/record.url?scp=84867222106&partnerID=8YFLogxK
U2 - 10.1109/SAM.2012.6250522
DO - 10.1109/SAM.2012.6250522
M3 - Conference contribution
AN - SCOPUS:84867222106
SN - 9781467310710
T3 - Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
SP - 401
EP - 404
BT - 2012 IEEE 7th Sensor Array and Multichannel Signal Processing Workshop, SAM 2012
T2 - 2012 IEEE 7th Sensor Array and Multichannel Signal Processing Workshop, SAM 2012
Y2 - 17 June 2012 through 20 June 2012
ER -