| 圆天线阵时空调制扩频通信定位系统设计与仿真 |
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| 引用本文： | 宋茂忠,许宗泽. 圆天线阵时空调制扩频通信定位系统设计与仿真[J]. 厦门大学学报(自然科学版), 2002, 41(1): 30-34 |
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| 作者姓名： | 宋茂忠 许宗泽 |
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| 作者单位： | 南京航空航天大学信息科学与技术学院,江苏,南京,210016 |
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| 基金项目： | 国家自然科学基金资助项目 (6 9972 0 18) |
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| 摘 要： | 针对通信定位综合一体化的趋势和未来移动通信发展的需要，提出了一种新颖的四相时空调制扩频技术，设计了一种利用36元均匀间隔圆阵天线发射的通信定位综合化系统。由于巧妙地利用了沃尔氏序列与其交替倒相序列正交的特性，接收机相当简单，而误码性仍与直接序列扩频PSK接近。给出了信号的编码，调制，发射，解扩和方位角估计等关键技术的解决方案，并分析了误码和测角性能。
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| 关 键 词： | 无线定位 移动通信 圆天线阵 时空调制扩频系统 通信定位 扩频通信 扩频码 |
| 文章编号： | 0438-0479(2002)01-0030-05 |
| 修稿时间： | 2001-05-14 |
System Design and Simulation of Communication and Radiolocation with Spread-spectrum Space-time Modulation Transmitted by Circular Array Antennae |
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| SONG Mao-zhong,XU Zong-ze. System Design and Simulation of Communication and Radiolocation with Spread-spectrum Space-time Modulation Transmitted by Circular Array Antennae[J]. Journal of Xiamen University(Natural Science), 2002, 41(1): 30-34 |
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| Authors: | SONG Mao-zhong XU Zong-ze |
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| Abstract: | To meet the challenge of future mobile communication and integrated communication and radiolocation systems, a new spread-spectrum system with space-time modulation technology is proposed, with which the system can transmit azimuth and communication message. The transmitting scheme with 36 elements circular array antennae and the spread-spectrum receiver are designed. The receiver is very simple and the performance of the bit error rate is similar to directsequence spread-spectrum PSK, by means that a WALSH sequence is orthogonal to its phase-alternation-bit sequence. |
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| Keywords: | modulation spread-spectrum system direction-finding wireless location mobile communication |
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