| 摘要: |
| 提出了基于高阶累积量的V-BLAST OFDM 信号识别算法，用以区分频率选择性衰落信
道条件下V-BLAST结构的多载波信号(OFDM)和单载波信号(MFSK、MPSK、MQAM)。该算法不需
要预先知道信号的载波频率、波特率以及信道的先验信息，直接在中频对信号进行识别处理
。仿真结果表明该算法具有良好的识别性能。 |
| 关键词: OFDM V-BLAST 调制识别 盲识别 高阶累积量 |
| DOI： |
|
| 基金项目:国家科技重大专项基金项目（2010ZX03006-002-03）；陕西省自
然科学基金资助项目(1090275)；陕西省教育厅科研计划项目(11JK1011)；智能机器人湖北省重
点实验室基金项目(HBIR 201102) |
|
| Modulation recognition for V-BLAST OFDM signals |
| ZHAN Jin-long,GUO Yong-ming,LU Jian-jun |
| (Institute of Communication and Information Engineering,Xi′an University of Posts and Telecommunications,Xi′an 710061, China;The National Research Institute of Radio Spectrum Management, Xi′an 710061, China) |
| Abstract: |
| Based on high-order cumulants(HOC), a novel recognition algorithm is p
roposed for V-BLAST(Vertical Bell Labs Layered Space-Time) OFDM(Orthogonal Frequ
ency-Division Multiplexing) signals to distinguish multi-carrier modulated signa
ls(
OFDM) from single-carrier modulated signals(MFSK, MPSK and MQAM). The proposed a
lgorithm directly processes intermediate frequency signals without the prior inf
ormation about the carrier frequency and symbol rate of the transmit signal and
the channel. Simulation results confirm the validity of the proposed algorithm. |
| Key words: OFDM V-BLAST modulation recognition blind recognition high-order cumulants |
《电讯技术》编辑部 