DIFFERENTIALLY MATCHED FILTER WITH SMALL SIZE AND LOW POSITION,申请号JP19990307232-传众专利搜索

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发明名称	DIFFERENTIALLY MATCHED FILTER WITH SMALL SIZE AND LOW POSITION
摘要	PROBLEM TO BE SOLVED: To reduce the power consumption of a matched filter(MF) for code division multiple access(CDMA) by reducing its forming area. SOLUTION: The matched filter, which uses a differential coefficient sequence to apply inverse spread to a spread spectrum signal and filters the spread spectrum signal, is configured with a differential sequence of a coefficient sequence consisting of a product between a prescribed coefficient sequence and a prescribed code sequence. In the coefficient sequence having a very high correlation with a square wave of a period of 4 (repetition of [+1, +1, -1, -1]), the product between the sequence and the square wave has less transition than the original sequence. Applying a differential technology to the sequence obtained by multiplying the square wave with the coefficient sequence can obtain many zero-taps than the case with application of the differential technology to the original coefficient sequence. As a result, the number of entries to an adder tree can be decreased.
申请公布号	JP2001127670(A)	申请公布日期	2001.05.11
申请号	JP19990307232	申请日期	1999.10.28
申请人	TOSHIBA CORP;MASANA LTD	发明人	CHRIS BURIIKUREI
分类号	H03H17/06;H04B1/707;H04B1/7093	主分类号	H03H17/06
代理机构		代理人
主权项
地址

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