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    • 19. 发明申请
    • SPREAD SPECTRUM WITH DOPPLER OPTIMIZATION
    • 具有多普勒优化的传播光谱
    • US20090238248A1
    • 2009-09-24
    • US12472642
    • 2009-05-27
    • Theodore J. MyersDaniel Thomas Werner
    • Theodore J. MyersDaniel Thomas Werner
    • H04B1/707
    • H04W56/0035H04B1/7085
    • A method of compensating for doppler phase errors includes receiving a signal at a receiver wherein the signal is spread using a pseudo-noise code, dividing the signal into a plurality of smaller coherent units and then compensating for induced doppler phase errors by analyzing the plurality of smaller coherent units. Analysis may include producing a plurality of coherent sums by summing across the smaller coherent units and then summing non-coherently the plurality of coherent sums. Analysis may also include demodulating a symbol from the smaller coherent units. A modulation technique may be selected from a plurality of modulation techniques and then be used to encode and transmit a symbol stream.
    • 一种补偿多普勒相位误差的方法包括在接收机处接收信号,其中信号使用伪噪声码进行扩展,将信号分成多个较小的相干单元,然后通过分析多个相位单元来补偿诱发的多普勒相位误差 较小的连贯单位。 分析可以包括通过在较小相干单元之间求和来产生多个相干和,然后非相干地将多个相干和相​​加。 分析还可以包括从较小的相干单元解调符号。 可以从多种调制技术中选择调制技术,然后用于编码和发送符号流。