![PHASED ARRAY SPREAD SPECTRUM SYSTEM AND METHOD](/ep/2002/08/28/EP0767976B1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: PHASED ARRAY SPREAD SPECTRUM SYSTEM AND METHOD
- 专利标题(中):扩频系统和方法的相控阵。
- 申请号:EP95926635.4 申请日:1995-06-16
- 公开(公告)号:EP0767976B1 公开(公告)日:2002-08-28
- 发明人: SCHILLING, Donald, L.
- 申请人: INTERDIGITAL TECHNOLOGY CORPORATION
- 申请人地址: Suite 527, 300 Delaware Avenue Wilmington, DE 19801 US
- 专利权人: INTERDIGITAL TECHNOLOGY CORPORATION
- 当前专利权人: INTERDIGITAL TECHNOLOGY CORPORATION
- 当前专利权人地址: Suite 527, 300 Delaware Avenue Wilmington, DE 19801 US
- 代理机构: Frohwitter, Bernhard, Dipl.-Ing.
- 优先权: US266769 19940628
- 国际公布: WO96000991 19960111
- 主分类号: H01Q3/26
- IPC分类号: H01Q3/26 ; H04B15/00 ; H04K1/00 ; H04K1/10 ; H04L27/30 ; H04B7/08
摘要:
A phased array spread-spectrum system maximizes signal strength of a spread-spectrum signal with multipath. RF/IF section (21) receives a plurality of spread-spectrum signals. RF/IF section (22) receives a plurality of phased versions of the plurality of spread-spectrum signals. Digital delay devices (27, 28) delay the received spread-spectrum signals with respect to their phased versions by a plurality of delays. Summers (29, 30) combine the delayed spread-spectrum signals and their phased versions as a plurality of combined signals. Despreader (31) despreads the combined signals as a plurality of despread signals. Magnitude device (32) generates a plurality of magnitude values from the despread signals. Shift register (33) stores a plurality of previous-magnitude values and present-magnitude values previously and presently generated by the magnitude device (32). Comparator (34) compares the previous-magnitude values to the present-magnitude values and outputs a plurality of comparison signals. Digital delay devices (27, 28), responsive to the comparison signals, lengthen or shorten the plurality of delays.
IPC结构图谱:
H | 电学 |
--H01 | 基本电气元件 |
----H01Q | 天线 |
------H01Q3/00 | 改变天线或天线系统辐射波的指向或方向图形的装置 |
--------H01Q3/26 | .改变两个或两个以上辐射单元之间激励电流的相对相位或相对幅值;改变辐射口径面上的能量分布 |