Method and apparatus for the reception of a signal
US10749567B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2017 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Jul 27, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/71563
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for the reception of a frequency hopped direct sequence spread spectrum signal includes acquiring the signal by splitting the received signal into a plurality of processing sub-channels, each corresponding to one or more hop frequencies; and within each sub-channel: i) subtracting any sub-carrier frequency from the received signal; ii) filtering the signal from (i) using a chip-matched filter; iii) selecting a sub-set of samples from the filtered signal; iv) correlating the sampled signal from step (iii) with a known reference signal to produce at least one correlator output. The output(s) from each sub-channel are provided to an input of a corresponding one or more common discrete time Fourier transforms (DTFT), and an output therefrom having a peak above a predetermined threshold is selected for further processing in the receiver. The method is a less expensive way of tracking the signal and can demodulate appropriately modulated signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.