Method for interweaving extended code

A technology of spreading codes and communication methods, which is applied in multiplexing code distribution, multiplexing communication, code division multiplexing systems, etc., and can solve problems such as less energy and lower receiver sensitivity
CN101133583AInactive Publication Date: 2008-02-27VISHAY INTERTECHNOLOGY INC
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
VISHAY INTERTECHNOLOGY INC
Publication Date
2008-02-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

An interwoven spreading code is formed by a stretched spreading code series at a first frequency and a mirror of the stretched spreading code series at a second frequency. The interwoven spreading code can be used to spread a baseband signal. Data can be recovered through correlation of a received signal with the interwoven spreading code. The spreading code used in forming the interwoven spreading code can be a Barker code.
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Description

technical field

[0001] The present invention relates to interleaved spreading codes, such as Barker codes, for pulse compression or pulse coding, such as may be used for direct sequence spread spectrum communications. Although the invention is primarily discussed in the context of direct-sequence spread-spectrum signals, the invention should not be limited to specific contexts such as Barker codes, and other spreading codes may be used in other contexts, especially where high noise low applications in signal environments. Background technique

[0002] In a spread spectrum communication system, a signal occupies a bandwidth higher than the minimum necessary bandwidth for information transmission. The baseband is extended by using a code independent of the data to be transmitted. Direct sequence is a technique in which a code signal is multiplied by a data signal. The code may be a Barker code. At the receiver, the original data signal is recovered by correlating the recei...

Claims

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