发明名称 |
Radio wave arrival direction estimating antenna apparatus |
摘要 |
A mobile station transmitted signal received at array antenna 11 is converted into an intermediate frequency signal in frequency conversion section 12, and converted into a digital signal in analog-digital conversion section 13. Arrival direction estimating section 15 estimates the number of mobile stations and directions thereof by processing the digital signal. Arrival direction tracking section 16 estimates a direction of a mobile station by sequential processing using an estimated result in arrival direction estimating section 15. Beam forming means 17 forms an antenna radiation beam to a direction of the estimated result in arrival direction tracking section 16.
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申请公布号 |
US6529745(B1) |
申请公布日期 |
2003.03.04 |
申请号 |
US19990413367 |
申请日期 |
1999.10.06 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;IIDA TAKASHI |
发明人 |
FUKAGAWA TAKASHI;NAKAGAWA YOUICHI;KISHIGAMI TAKAAKI;HASEGAWA MAKOTO;TSUJI HIROYUKI |
分类号 |
H01Q3/26;G01S3/14;G01S3/74;H01Q21/00;(IPC1-7):G01S3/28;H04B1/40 |
主分类号 |
H01Q3/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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