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Predictive signal cancellation for extracting 1 Mb/s MIL-STD-1553 component from composite high performance 1553 signal
Predictive signal cancellation for extracting 1 Mb/s MIL-STD-1553 component from composite high performance 1553 signal
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机译:从复合高性能1553信号中提取1 Mb / s MIL-STD-1553分量的预测信号消除
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摘要
Method and apparatus for maximizing the usable bandwidth for High Performance 1553 terminals operating concurrently on the same physical bus with legacy 1 Mb/s MIL-STD-1553 terminals. More specifically, the method and apparatus provides implementation for predictive cancellation by synthesizing an estimate of the 1 Mb/s MIL-STD-1553 component of a composite 1 Mb/s plus High Performance 1553 input signal using either of two different techniques: (1) a combination of digital and analog techniques; and (2) an all digital technique. The synthesized signal is then subtracted from the composite signal. Both techniques employ an algorithm for minimizing the effects of clock skew between 1 Mb/s 1553 transmitting clocks and the local High Performance 1553 sampling clock. Both techniques also incorporate an adaptation algorithm for developing and maintaining digital models of 1 Mb/s 1553 signals received from multiple 1 Mb/s 1553 terminals on a bus.
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机译:用于最大化在具有传统1 Mb / s MIL-STD-1553终端的同一物理总线上同时运行的高性能1553终端的可用带宽的方法和装置。更具体地,该方法和装置通过使用两种不同技术中的一种来合成复合材料1 Mb / s加上高性能1553输入信号的1 Mb / s MIL-STD-1553分量的估计值,从而提供了预测性取消的实现:(1 )数字和模拟技术的结合; (2)全数字技术。然后从合成信号中减去合成信号。两种技术都采用一种算法来最小化1 Mb / s 1553发送时钟和本地高性能1553采样时钟之间的时钟偏斜的影响。两种技术都还包含一种自适应算法,用于开发和维护从总线上多个1 Mb / s 1553终端接收到的1 Mb / s 1553信号的数字模型。
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