Title:
【発明の名称】信号検出器
Document Type and Number:
Japanese Patent JP3097586
Kind Code:
B2
Abstract:
A signal detector for detecting a narrow-band signal of a desired frequency, using an adaptive type FIR filter having two filter coefficients, is disclosed. Using this filter, the input signal of a shift register which delays the signal, is estimated by referring to the output therefrom. A narrow-band signal of a desired frequency is detected by comparing each filter coefficient of this filter with a known filter coefficient corresponding to the frequency which is the object of detection.
Inventors:
Atsushi Hasegawa
Application Number:
JP5190097A
Publication Date:
October 10, 2000
Filing Date:
March 06, 1997
Export Citation:
Assignee:
NEC
International Classes:
H04L27/00; G06F17/10; (IPC1-7): H04L27/00
Domestic Patent References:
| JP3187512A | ||||
| JP3253149A | ||||
| JP3253150A | ||||
| JP3295422A | ||||
| JP415525A | ||||
| JP415526A | ||||
| JP492540A |
Other References:
１９９０年電子情報通信学会春季全国大会講演論文集，分冊３，ｐ．３−３１６
Attorney, Agent or Firm:
Nobuyuki Kaneda (2 others)