Dynamic matched filter bank and its application in multi-channel spread spectrum communication systems
US7317753B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jul 11, 2002 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Nov 18, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/7071
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A dynamic matched filter bank consists of a plurality of matched filters with either the reference signal for each matched filter changes with the time or the input signal to a matched filter is the received signal modified by a different way for a different matched filter. A receiver employed a set of dynamic matched filter banks in a multi-channel spread spectrum communication system consists of a signal register, a block PN generator, a plurality of spreading sequence generators, a plurality of register arrays, a plurality of multiplier arrays, a plurality of matched filters, a plurality of signal combiners, and a controller. The block PN generator generates a section of PN sequence at the end of every symbol period with feedback logic to shift a block of chips each time. A register array captures each section of PN sequence from the block PN generator and delays it for a symbol period. The rest register arrays are in cascade and delay the section of sequence at each of their inputs by one symbol period. The signal register generates a moving section of the received signal. Each of the multiplier arrays multiplies each moving section of the received signal by a section of PN seq…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.