Title:
SIGNAL SERIES DETECTION METHOD
Document Type and Number:
Japanese Patent JP2773562
Kind Code:
B2
Abstract:
PURPOSE: To detect signal series whose phase change is equal to each other for each sampling time interval included in a reception wave possible for synchronization detection even when noise is invaded on a transmission line.
CONSTITUTION: A signal vector obtained by applying synchronization detection to a received wave is sampled by a sampling rate equal to a symbol rate (step 3), and the sampled signal vector is rotated by a predetermined angle only (step 4). Then an average vector of signal vectors after rotation whose number corresponds to the length of a current specific signal series to be detected is obtained (step 6), and a square sum of distances between the average vector obtained in the step 6 and signal vectors after rotation used to obtain the average vector is obtained (step 7). When the square sum is smaller than a prescribed value, it is discriminated that the specific signal series is detected (step 9).
Inventors:
Hiroyasu Muto
Application Number:
JP22081292A
Publication Date:
July 09, 1998
Filing Date:
July 28, 1992
Export Citation:
Assignee:
NEC
International Classes:
H04L7/00; H04L7/033; H04L7/04; H04L27/14; (IPC1-7): H04L27/14; H04L7/00
Domestic Patent References:
| JP3128550A | ||||
| JP323742A | ||||
| JP323743A |
Attorney, Agent or Firm:
Sakai Hiromi
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