| 摘要: |
| 为了提高短波通信容量和数据传输速率，缓减短波信道拥挤状况，提出了基于椭圆
球面波的非正弦短波通信方案。该方案利用快速设计方法设计椭圆球面波脉冲信号，利用新
方法构建椭圆球面波时域正交脉冲集，利用基于椭圆球面波的非正弦调制方法调制发送数据
，利用基于椭圆球面波的非正弦相关解调方法解调发送数据。对基于椭圆球面波的非正弦调
制解调原理进行了推导和分析，对基于椭圆球面波的非正弦调制方法频带利用率和峰均功率
比性能进行了理论分析和仿真。在Watterson短波信道模型的基础上，仿真了基于椭圆球面
波的非正弦相关解调误码率性能。理论分析和仿真结果表明，基于椭圆球面波的非正
弦短波通信方案频带利用率高，可快速接近2 bit/s·Hz-1的理论极限值，频带利用
率、峰均功率比和误码率性能均优于OFDM技术。 |
| 关键词: 无线通信 非正弦短波通信 椭圆球面波
函数 调制解调 性能分析 |
| DOI： |
|
| 基金项目: |
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| Nonsinusoidal HF Communication Scheme and Performance Analysis |
| SHU Gen-chun,WANG Hong-xing,LIU Chuan-hui |
| (Department of Electronic and Information Engineering,Naval Aeronautical and
Astronautical University, Yantai 264001,China) |
| Abstract: |
| In order to raise HF communication capacity and data transfer rate,and also to
ease the crowded state of HF channel, a nonsinusoidal HF communication scheme b
ased on prolate spheroidal wave functions (PSWF) is proposed. The sch
eme designs prolate spheroidal wave pulse signals by using quick design method
,constructs PSWF time-domain orthogonal pulse sets by using new method,modula
tes transmit data with nonsinusoidal modulation method and demodulates transmit
data with nonsinusoidal coherent demodulation method. The latter two methods ar
e based on PSWF. Principle of the modulation-demodulation method is theoretica
lly derived. Theoretical analysis and simulation are conducted for bandwidth ef
ficiency and peak-to-average power ratio(PAPR) performance of the nonsinusoidal
modula
tion method. On the basis of Watterson HF channel model, bit error rate(BER) per
forma
nce of the coherent demodulation method is simulated. Theoretical analysis and
simulation results show that the bandwidth efficiency of the nonsinusoidal HF co
mmun
ication scheme is high and close to theoretical ultimate value 2
bit/s·Hz-1 quickly. Performance of bandwidth efficiency, PAPR
and BER of the nonsinusoidal HF communication scheme is better than
that of orthogonal frequency division multiplexing (OFDM) technology. |
| Key words: wireless communication nonsinusoidal HF communication prolate spheroidal wave f
unctions modulation an
d demodulation performance analysis |
