| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that the estimation of a delay time in which an impulse response value expressed by a complex number localizes may become impossible when the complex number is allocated to each parameter, although it is necessary to allocate the complex number to each parameter because it is necessary to observe the phase of a signal when performing the signal processing of a radar waveband. SOLUTION: The delay time dk, in which the impulse response value ck expressed by a complex number localizes is estimated by using two kinds of load g, g* having the relation of a complex conjugate mutually, and an echo is removed by using the delay time dk, or the like.
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