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Development and saw device implementation of a new weighted stepped chirp code signal for direct sequence spread spectrum communications systems.

机译:用于直接序列扩频通信系统的新型加权步进线性调频编码信号的开发和锯装置实现。

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摘要

This work introduces the new weighted stepped chirp code signal for direct sequence spread spectrum (DS/SS) communications systems. This code signal uses the truncated cosine series functions as the chip functions. This code signal is the result of discretizing a continuous wave (CW) chirp which results in enhanced performance versus a pseudonoise (PN) code and equivalent performance and easier implementation than a CW chirp. This code signal will be shown to possess improved compression ratio (CR), peak sidelobe level (PSL), integrated sidelobe level (ISL), and bit error rate (BER) when compared to a PN code of identical code length and chip length. It also will be shown to have a similar CR, PSL, ISL, and loss in processing gain (LPG) when compared to a CW chirp with identical pulse length and frequency deviation.; The code signal is implemented on surface acoustic wave (SAW) devices which can be used as the code signal generator at the transmitter and the correlator at the receiver in a DS/SS communications system. SAW design considerations for the weighted stepped chirp signal are discussed. Experimental data is presented and compared to the predicted CR, PSL, ISL, LPG, and BER.
机译:这项工作介绍了用于直接序列扩频(DS / SS)通信系统的新型加权步进线性调频码信号。该代码信号将截短余弦序列功能用作芯片功能。该代码信号是离散化连续波(CW)线性调频脉冲的结果,与伪噪声(PN)码相比,它提高了性能,并且等效性能比CW线性调频脉冲易于实现。与相同码长和码片长度的PN码相比,该码信号将显示出具有更高的压缩率(CR),峰值旁瓣电平(PSL),积分旁瓣电平(ISL)和误码率(BER)。与具有相同脉冲长度和频率偏差的CW线性调频脉冲相比,它也具有相似的CR,PSL,ISL和处理增益损失(LPG)。该代码信号在表面声波(SAW)设备上实现,可以在DS / SS通信系统中用作发射机处的代码信号生成器和接收机中的相关器。讨论了加权步进线性调频信号的SAW设计注意事项。呈现实验数据并将其与预测的CR,PSL,ISL,LPG和BER进行比较。

著录项

  • 作者

    Carter, Scott Edward.;

  • 作者单位

    University of Central Florida.;

  • 授予单位 University of Central Florida.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 1998
  • 页码 105 p.
  • 总页数 105
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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