A Fast Periodic Correlation Method for Zcz Sequence Set Generated by Interleaving Method
A technology of period correlation and interleaving, which is applied in receiver-specific devices, transmission modification based on link quality, and error prevention/detection through diversity reception, which can solve the problem of increasing receiver hardware costs and information processing delays. , the large amount of calculation of cycle-related operations, the rapid processing of unfavorable information, etc.
Active Publication Date: 2018-06-19
南京易太可通信技术有限公司
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However, in practical applications, the calculation amount of periodic correlation operation is large, which increases the hardware cost of the receiver and the information processing delay, which is not conducive to the rapid processing of information
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[0072] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.
[0073] A fast periodic correlation method based on the ZCZ sequence set generated by the interleaving method based on the ideal sequence and unitary matrix, which can reduce the number of operations of periodic correlation multiplication and addition. The specific implementation plan is as follows:
[0074] (1) is an ideal sequence of length l=4, l 0 = l 1 =2, N=2, by A 0 , B 1 and B 2 Iteratively generated collection of ZCZ sequences is a set of biphasic sequences. Let and ZCZ sequence ...
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The invention discloses a fast-cycle correlation method of a ZCZ (zero correlation zone) sequence set generated by an interleaving technique. The method comprises the following steps: determining parameters required for generating the ZCZ sequence set, the parameters comprising iterations, an autocorrelation sequence of an ideal cycle and a unitary matrix and determining parameters of the ZCZ sequence set, the parameters comprising sequence length, sequence number and length of the zero correlation zone; dividing a receiving sequence related to the ZCZ sequence set cycle into sub vectors and correlating with the ideal autocorrelation sequence; multiplying the correlation values with elements in the unitary matrix and summarizing corresponding elements to obtain a new group of correlation values; carrying out loop iteration on the previous step to finally obtain the cycle correlation value of the receiving sequence and the ZCZ sequence set.
Description
technical field [0001] The invention provides a fast periodic correlation method for a zero correlation zone (Zero Correlation Zone, ZCZ) sequence set generated by an interleaving method, which belongs to the technical fields of information theory, signal processing and communication. Background technique [0002] A set of sequences with ideal periodic autocorrelation and periodic cross-correlation or ideal aperiodic autocorrelation and aperiodic cross-correlation can be well applied in communication and radar systems, providing information including identification, synchronization, search, interference cancellation and channel Estimation and other functions. For example, with the development of wireless communication technology represented by Multiple-Input and Multiple-Output (MIMO) technology, how to use the spatial dimension to enable the system to obtain higher throughput and more reliable transmission, It has become one of the most popular research topics at present. ...
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IPC IPC(8): H04L1/06H04L1/00
CPCH04L1/0036H04L1/0059H04L1/0071H04L1/065
Inventor 王海明王宇何世文黄永明杨绿溪张军洪伟江华
Owner 南京易太可通信技术有限公司