| 摘要 |
PROBLEM TO BE SOLVED: To increase the detection sensitivity in spread code synchronizing detection of spread spectrum signals. SOLUTION: This method that performs a spread code synchronizing detection in spread spectrum signals with spread spectrum processing of data with a bit-shift cycle of multiple times one cycle of spread-code performs processing of obtaining a linear-sum of correlation computation results that is a linear sum of correlation computation results between the spread spectrum signals and the spread codes, for every unit time-period of multiple times one cycle of spread-code and shorter than the bit-shift cycle, computing the absolute value of the obtained linear-sum of correlation computation results for each unit time-period, summing the computed absolute values by multiple unit time- periods, and detects a correlated point from the summed absolute values. |
