High accuracy random channel reproducing simulator
US4737928A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1985 |
| Grant date | Apr 12, 1988 |
| Priority date | — |
| Expiry date | Jul 10, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06G7/62
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A channel propagation simulator simulates a multi-diversity branch signal channel, which simulator uses in a preferred embodiment appropriate filter means, such as a plurality of tapped delay lines 11, 14, each capable of representing the impulse response of a diversity branch by means of correlated tap multipliers 12, 12A, 15, 15A . . . 15N, i.e., multipliers using correlated weighting signals 12', 12'A, 15', 15'A . . . 15'N as supplied from a matrix weighting correlator 19. The correlated weighted signals are combined for each diversity branch by suitable summation circuits 13, 16 to provide the diversity branch simulated outputs. By using correlated weighting signals, the simulator can more accurately reproduces the statistical behavior of a given communications link and verify that a given modem will satisfy the communication link specifications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.