Patent ID: 9065549
Filing Date: 2015-06-23
Classification: G01S,H04B

Abstract:
1. A calculating method comprising: sampling, by a calculation circuit, a code signal at ½ chip interval to obtain sampling values; extracting, by the calculation circuit, first sampling code and second sampling code from at least a part of the sampling values, the first sampling code including odd-degree sampling values and the second sampling code including even-degree sampling values; correlating, by the calculation circuit, the first sampling code and a replica code to obtain first correlation result; correlating, by the calculation circuit, the second sampling code and the replica code to obtain second correlation result; synthesizing, by the calculation circuit, the first correlation result and the second correlation result to obtain first synthesis result at ½ chip interval; and reusing, by the calculation circuit, the first correlation result or the second correlation result to obtain second synthesis result at ½ chip interval.