| 摘要 |
<p>A novel and improved method and apparatus for searching is described. This searcher combines the ability to search multiple offsets of single pilots, such as those found in the IS95 system, with the ability to search multiple pilots, such as those found in a GPS location determination system. Both types of searching can be done in a single architecture combining the parallel computation features of a matched filter with the flexibility of allowing a variable number of noncoherant accumulations to be performed at high speed for a wide range of search hypotheses in a resource efficient manner. This invention allows for parallel use of the matched filter structure in a timesliced manner to search multiple windows. In addition, the searcher allows for optional independent Walsh decovering for each search window. The timesharing approach allows for optional frequency searching of any offset.</p> |
