Circuits, devices, and processes for improved positioning satellite reception and other spread spectrum reception

摘要

An integrated circuit for facilitating spread spectrum reception of data having a data bit period includes an hypothesis search circuit (120, 210, 220) operable to correlate a pseudorandom code with a signal input based on a received signal to produce correlation results, and a processor circuit (320) operable to coherently integrate the correlation results over plural sample windows (PreD1, PreD2) staggered relative to each other in the coherent integration interval and to non-coherently combine the coherently integrated results corresponding to the plural sample windows (PreD1, PreD2) to produce a received signal output, whereby enhancing performance. Other circuits, receivers and processes are also disclosed.

主权项

1. An integrated circuit for facilitating spread spectrum reception of data having a data bit period comprising:
an hypothesis search circuit operable to correlate a pseudorandom code with a signal input based on a received signal to produce correlation results; and a processor circuit operable to coherently integrate the correlation results over plural sample windows staggered relative to each other within a coherent integration interval wherein the windows are staggered with respect to each other by an amount less than the coherent integration interval and to non-coherently combine the coherently integrated results corresponding to the plural sample windows to produce a received signal output, whereby enhancing performance.