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:CORDIC算法将复杂的算术运算转化为简单的加法和移位操作,然后逐次逼近结果。这种方法很好的兼顾了精度、速度和硬件复杂度,它与VLSI技术的结合对DSP算法的硬件实现具有极大的意义,因而在数字信号处理领域得到了广泛应用。本文首先简要介绍了CORDIC算法的原理,然后详细描述了双模式(旋转/向量)CORDIC算法的预处理和后处理,并且基于FPGA实现了流水线双模CORDIC算法。-By converting complex arithmetic into simple operations su
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Verilog HDL是一种硬件描述语言,用于从算法级、门级到开关级的多种抽象设计层次的
数字系统建模。被建模的数字系统对象的复杂性可以介于简单的门和完整的电子数字系统之间。数字系统能够按层次描述,并可在相同描述中显式地进行时序建模。-Verilog HDL is a hardware descr iption language, used from the algorithm level, gate-level to switch level design of a variety of
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Abstract—In this letter, we propose an efficient decoding algorithm
for turbo product codes as introduced by Pyndiah. The proposed
decoder has no performance degradation and reduces the
complexity of the original decoder by an order of magni
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人工神经网络(ArtificialNeuralNetworks,简写为ANNs)也简称为神经网络(NNs)或称作连接模型(ConnectionistModel),它是一种模范动物神经网络行为特征,进行分布式并行信息处理的算法数学模型。这种网络依靠系统的复杂程度,通过调整内部大量节点之间相互连接的关系,从而达到处理信息的目的。
-Artificial neural network (ArtificialNeuralNetworks, abbreviated as ANNs) also refe
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n this paper, a new dynamic noise reduction
algorithm is proposed based on time-variety filter (TVF), which
can be implemented in both time and modified discrete cosine
transform (MDCT) domain. In time domain, an IIR filter with
changeable ba
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人脸检测与跟踪是一个重要而活跃的研究领域,它在视频监控、生物特征识别、视频编码等领域有着广泛的应用前景。该项目的目标是在FPGA板上实现实时系统来检测和跟踪人脸。人脸检测算法包括肤色分割和图像滤波。通过计算被检测区域的质心来确定人脸的位置。该算法的软件版本独立实现,并在matlab的静止图像上进行测试。虽然从MATLAB到Verilog的转换没有预期的那样顺利,实验结果证明了实时系统的准确性和有效性,甚至在不同的光线、面部姿态和肤色的条件下也是如此。所有硬件实现的计算都是以最小的计算量实时完成的
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It draws on principal component analysis algorithm (PCA), LZ complexity is reflected in a time sequence, Image optical flow calculation matlab program.
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For time-frequency analysis algorithm, A noise auxiliary data analysis method, LZ complexity is reflected in a time sequence.
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Minimum mean square error (MMSE) algorithm, Based on negative entropy largest independent component analysis, LZ complexity is reflected in a time sequence.
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