TY - JOUR
T1 - Performance analysis of 3-D direction estimation based on head-related transfer function
AU - Sen, Satyabrata
AU - Nehorai, Arye
N1 - Funding Information:
Manuscript received July 10, 2008; revised September 04, 2008. Current version published March 18, 2009. This work was supported by the Defense Advanced Research Projects Agency (DARPA) under Grant HR0011-07-1-0036. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Malcolm Slaney.
PY - 2009/5
Y1 - 2009/5
N2 - We analyze the performance of a sensor system based on the head-related transfer function (HRTF) modeling of human hearing, in finding the direction of a source in 3-D space. Thus, this system has only two sensors with a few nearby reflectors. First, we present a parametric measurement model that incorporates the diffractions associated with the head shape and the multipath reflections related to the external ear (pinna). Then, we compute the asymptotic Cramer-Rao bound on the 3-D direction estimate for a stochastic source signal of unknown parametrized spectrum. We provide a few numerical examples to illustrate our analytical results.
AB - We analyze the performance of a sensor system based on the head-related transfer function (HRTF) modeling of human hearing, in finding the direction of a source in 3-D space. Thus, this system has only two sensors with a few nearby reflectors. First, we present a parametric measurement model that incorporates the diffractions associated with the head shape and the multipath reflections related to the external ear (pinna). Then, we compute the asymptotic Cramer-Rao bound on the 3-D direction estimate for a stochastic source signal of unknown parametrized spectrum. We provide a few numerical examples to illustrate our analytical results.
KW - 3-D direction estimation
KW - Head-related transfer function (HRTF)
KW - Mean-square angular error (MSAE) bounds
KW - Multipath reflections
UR - http://www.scopus.com/inward/record.url?scp=65249128148&partnerID=8YFLogxK
U2 - 10.1109/TASL.2008.2008235
DO - 10.1109/TASL.2008.2008235
M3 - Article
AN - SCOPUS:65249128148
SN - 1558-7916
VL - 17
SP - 607
EP - 613
JO - IEEE Transactions on Audio, Speech and Language Processing
JF - IEEE Transactions on Audio, Speech and Language Processing
IS - 4
M1 - 4802169
ER -