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首页> 外文会议>Conference on Optical Transmission Systems and Equipment for WDM Networking, Jul 29-31, 2002, Boston, USA >QUO VADIS, SIGNAL PROCESSING?
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QUO VADIS, SIGNAL PROCESSING?

机译：Quo Vadis，信号处理？

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When Light propagates through optical elements (such as lenses), it undergoes a transform. The input and the output data take the form of light and optical elements that perform different mathematical operations on light represent th linear transform. The transform is performed not on the discrete elements of the data but on the whole vector at once, and most significantly, at the speed of light. The great advantages offered by optical processing are that it offers enormous parallelism, operating on all data points simultaneously, very low latency, a high transform rate and low power dissipation. The outcome is enormously increased speed and a reduction in the amount of associated cooling required. The Optical Signal Processor (OSP) increases the speed of processing transforms by many orders of magnitude. The Signal Processor is also reconfigurable and can be dynamically tailored to the required transform type. One advantage of an optical processor is that it allows software designers to work at a much higher level of abstraction. This is because the device executes transforms instead of the ordinary MACs in the case of DSPs. Instead of handling algorithms at individual data points, algorithms for handling the entire vector could be processed, shortening the computational complexity and speeding the time-to-market for new products. An optical filter can be represented as a generic function, the most fundamental of the optical processor. The impulse response of this filter is defined with respect to frequency of light. Any transform on light can be represented as a combination of linear transforms. This i fundamentally the law of optical signal processing. The most important application of an OSP in Optical Networking i Pattern recognition, and this can easily be done by the usual cross-correlation technique that is common in digital signal processing. The OSP can be programmed to autocorrelate against specific temporal reference waveforms, viz. Data. Th decoding is done without electronic processing. And of course, the routing of optical signals is based on content. This paper provides insight to this efficient and novel method of computation and signal processing.
机译：当光通过光学元件（例如透镜）传播时，它会发生变换。输入和输出数据采用光的形式，对光执行不同数学运算的光学元件表示线性变换。变换不是在数据的离散元素上执行，而是在整个矢量上立即执行，最重要的是，以光速执行。光学处理所提供的巨大优势在于，它提供了巨大的并行性，可同时在所有数据点上运行，具有极低的等待时间，高转换速率和低功耗。结果是极大地提高了速度并减少了所需的相关冷却量。光信号处理器（OSP）将处理转换的速度提高了多个数量级。信号处理器也是可重新配置的，可以动态地调整为所需的转换类型。光学处理器的一个优点是，它允许软件设计人员以更高的抽象水平进行工作。这是因为在DSP的情况下，设备将执行转换而不是普通的MAC。代替处理单个数据点的算法，可以处理用于处理整个矢量的算法，从而缩短了计算复杂性并加快了新产品的上市时间。光学滤波器可以表示为通用功能，这是光学处理器的最基本特征。相对于光的频率定义该滤波器的脉冲响应。对光的任何变换都可以表示为线性变换的组合。这从根本上讲就是光信号处理的定律。 OSP在光网络i模式识别中最重要的应用，这可以通过数字信号处理中常见的常规互相关技术轻松完成。可以将OSP编程为与特定的时间参考波形自相关，即。数据。无需电子处理即可完成解码。当然，光信号的路由是基于内容的。本文为这种高效而新颖的计算和信号处理方法提供了见识。

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