DETECTION AND RANGING SYSTEM AND ANGLE ESTIMATION METHOD
First Claim
1. A detection and ranging system comprising:
- M transmitting sensor elements configured to transmit a probe signal;
N receiving sensor elements configured to receive an echo signal generated upon reflection of the probe signal from a target;
a matrix generator configured to generate a third matrix by multiplying a first matrix by a second matrix, the first matrix including as diagonal components L received signals obtained from an effective receiving sensor array formed by synthesizing the M transmitting sensor elements and the N receiving sensor elements, the second matrix being formed of P L-dimensional vectors that are linearly independent of each other; and
an estimator configured to estimate a direction of arrival of the echo signal from the target according to a pseudo covariance matrix generated by multiplying the third matrix by Hermitian conjugate transposition of the third matrix.
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Accused Products
Abstract
A detection and ranging system includes: M transmitting sensor elements configured to transmit a probe signal; N receiving sensor elements configured to receive an echo signal generated upon reflection of the probe signal from a target; a matrix generator configured to generate a third matrix by multiplying a first matrix by a second matrix, the first matrix including as diagonal components L received signals obtained from an effective receiving sensor array formed by synthesizing the M transmitting sensor elements and the N receiving sensor elements, the second matrix being formed of P L-dimensional vectors that are linearly independent of each other; and an estimator configured to estimate a direction of arrival of the echo signal from the target according to a pseudo covariance matrix generated by multiplying the third matrix by Hermitian conjugate transposition of the third matrix.
11 Citations
6 Claims
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1. A detection and ranging system comprising:
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M transmitting sensor elements configured to transmit a probe signal; N receiving sensor elements configured to receive an echo signal generated upon reflection of the probe signal from a target; a matrix generator configured to generate a third matrix by multiplying a first matrix by a second matrix, the first matrix including as diagonal components L received signals obtained from an effective receiving sensor array formed by synthesizing the M transmitting sensor elements and the N receiving sensor elements, the second matrix being formed of P L-dimensional vectors that are linearly independent of each other; and an estimator configured to estimate a direction of arrival of the echo signal from the target according to a pseudo covariance matrix generated by multiplying the third matrix by Hermitian conjugate transposition of the third matrix. - View Dependent Claims (2, 3, 4, 5)
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6. An angle estimation method used by a detection and ranging system including M transmitting sensor elements that transmit a probe signal and N receiving sensor elements that receive an echo signal generated upon reflection of the probe signal from a target, the angle estimation method comprising:
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generating a third matrix by multiplying a first matrix by a second matrix, the first matrix including as diagonal components L received signals obtained from an effective receiving sensor array formed by synthesizing the M transmitting sensor elements and the N receiving sensor elements, the second matrix being formed of P L-dimensional vectors that are linearly independent of each other; and estimating a direction of arrival of the echo signal received from the target according to a pseudo covariance matrix of the third matrix.
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Specification