发明申请
WO1992020162A2 METHOD AND APPARATUS FOR RESOLVING PHASE AMBIGUITIES IN TRELLIS CODED MODULATED DATA
审中-公开
基本信息:
- 专利标题： METHOD AND APPARATUS FOR RESOLVING PHASE AMBIGUITIES IN TRELLIS CODED MODULATED DATA
- 专利标题（中）：用于解决TRELLIS编码调制数据中相位优化的方法和装置
- 申请号：PCT/US1992003656 申请日：1992-05-01
- 公开(公告)号：WO1992020162A2 公开(公告)日：1992-11-12
- 发明人： QUALCOMM INCORPORATED , WOLF, Jack, Keil
- 申请人： QUALCOMM INCORPORATED
- 专利权人： QUALCOMM INCORPORATED
- 当前专利权人： QUALCOMM INCORPORATED
- 优先权： US695,397 19910503
- 主分类号： H03M13/00
- IPC分类号： H03M13/00
摘要：
A codec for resolving transmission phase ambiguities in the M-ary PSK modulation of trellis coded data. A trellis encoder (10) uses a differential encoder (22) and a convolutional encoder (24), along with multiplexed differential encoders (18, 20), to generate from sets of input data bits corresponding phase point values for use in M-ary PSK carrier modulation (12). A trellis decoder (32) uses a Viterbi decoder (40) and a differential decoder (50), along with multiplexed differential decoders (46, 48), to produce estimates of the original input data bits from the received signal sector value.
IPC结构图谱:
| H | 电学 |
| --H03 | 基本电子电路 |
| ----H03M | 一般编码、译码或代码转换 |
| ------H03M13/00 | 用于检错或纠错的编码、译码或代码转换；编码理论基本假设；编码约束；误差概率估计方法；信道模型；代码的模拟或测试 |