OLA(Overlap-add method)重叠相加法,其基本思路是将输入序列x(n)按照时间顺序分割为多段长度为L的子序列xk(n),通过计算每个子序列xk(n)与h(n)的卷积结果yk(n)=xk(n)∗h(n),最终将每个yk(n)按照一定的规律重叠累加(这也是OLA中Overlap add的含义),即可得到x(n)与h(n)的卷积结果。 1.1 OLA原理 设...
overlap-save methodSampling rate conversionThe overlap-add (OLA) and overlap-save (OLS) methods are well known as efficient schemes for higher-order filtering. In those methods, the linear convolution for the infinite-duration data is reduced to the circular convolution for the finite blocks, and...
Overlap-save and overlap-add introduce a processing latency of N-M+1 samples. You can reduce this latency by partitioning the numerator into shorter segments, applying overlap-add or overlap-save over the partitions, and then combining the results to obtain the filtered output[3]. The latency ...
Modified overlap-save and overlap-add algorithms for filtering a real signal by an N-tap finite impulse response filter are delineated. These algorithms compute two N-sample output blocks simultaneously at every processing step using 2N-point transforms, while the traditional methods compute only one...
Overlap-save and overlap-add methods enable efficient implementation of FIR filters. In this paper, a compact method for handling the overlap and shuffle of samples for real-time processing using pipelined FFT architectures is presented. It is suitable for cases when the sample rate is equal to ...
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Pitch synchronous overlap add (PSOLA) Improved Algorithm of Overlap-Save Method for Calculating Linear Convolution of a Long Sequence LiDAR技术及其应用 机载lidar定位精度分析 LIDAR相位噪声消除系统 nature16192-Functional overlap of the Arabidopsis leaf and root microbiota LIDAR数据获取与控制 相关...
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Overlap Add Method: The overlap–add method is an efficient way to evaluate the discrete convolution of a very long signal with a finite impulse response (FIR) filter where h[m] = 0 for m outside the region [1, M].The concept here is to divide the problem into multiple convolutions...