
基本信息:
- 专利标题: A WIRELESS DIGITAL SYNCHRONIZED DIVERSITY RECEIVER
- 专利标题(中):数字同步器多样性 - FUNKEMPFÄNGER
- 申请号:EP95905948 申请日:1994-12-28
- 公开(公告)号:EP0737380A4 公开(公告)日:2002-01-30
- 发明人: ANVARI KIOMARS , BAHAI AHMAD SHAIKH , BEHTASH SAMAN , WINSHIP PETER
- 申请人: ATMEL CORP
- 专利权人: ATMEL CORP
- 当前专利权人: ATMEL CORP
- 优先权: US17471293 1993-12-29; US17482093 1993-12-29
- 主分类号: H04L27/22
- IPC分类号: H04L27/22 ; H04B1/10 ; H04B7/08 ; H04B7/10 ; H04B7/26 ; H04B17/00 ; H04L1/02 ; H04L25/03 ; H03D3/00 ; H03D1/06 ; H03D11/04 ; H03K5/01 ; H03K6/04 ; H03K9/06 ; H04L1/00
摘要:
A digital receiver (10) for receiving an RF signal has a conventional RF to intermediate frequency (IF) converter (14). The IF signal, however, is amplified with a limit on its amplitude (20). In addition, a Receive Signal Strength Intensity (RSSI) signal is generated (28). The RSSI signal contains the envelope information of the modulated IF signal. The IF amplitude limited signal containing phase information is then digitized and a complex baseband signal is produced (68). The complex baseband signal is then combined with the RSSI signal to restore the amplitude information of the modulated IF signal in the complex baseband signal. The restored complex baseband signal can be equalized with a conventional equalizer (70) to remove intersymbol interference. A conventional symbol detector (80) detects the symbol in this signal stream.
摘要(中):
用于接收RF信号的数字接收机(10)具有传统的RF到中频(IF)转换器(14)。 然而,IF信号在幅度上受到限制(20)。 另外,生成接收信号强度强度(RSSI)信号(28)。 RSSI信号包含调制的IF信号的包络信息。 然后将包含相位信息的IF幅度限制信号数字化并产生复合基带信号(68)。 复合基带信号然后与RSSI信号组合以恢复复基带信号中的调制IF信号的幅度信息。 恢复的复基带信号可以用传统的均衡器(70)进行均衡以消除符号间干扰。 常规符号检测器(80)检测该信号流中的符号。
IPC结构图谱:
H | 电学 |
--H04 | 电通信技术 |
----H04L | 数字信息的传输,例如电报通信 |
------H04L27/00 | 调制载波系统 |
--------H04L27/02 | .调幅载波系统,例如应用通/断键控的;单边带或残留边带调制 |
----------H04L27/22 | ..解调器电路;接收机电路 |