HPS 所得到的音高解析度并不高,以上述范例而言,若不进行补零(Zero Padding),则无论最高点的位置为何,音高都会是 11025/256 = 43.07 Hz z的倍数。
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... 零相位系统 zero-phase system 补零 zero-stuffing 锯齿状扫描次序 zig-zag scanning order ...
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Both statistical analysis and simulation show that the interpolated DFT with zero-padding is less sensitive to the frequency drift and therefore has more stable per- formance than DFT without zero-padding.
性能分析和仿真试验还表明,补零离散傅立叶变换插值算法对频率偏差的敏感度降低,稳定性更好。
参考来源 - 补零离散傅立叶变换的插值算法The performances for both cycle prefix (CP) and zeros-padding (ZP) mode pilots are compared and analyzed in the case of unknown channel order (UCO).
在信道阶数未知情况下,对其导频采用循环前缀(CP)方式和补零(ZP)方式的性能做了比较分析。
参考来源 - 多径衰落信道下导频辅助的OFDM定时估计算法This paper introduces the SC-FDE system random access scheme employing prime number Zadoff-Chu sequence as user signature, and proposes a Zadoff-Chu sequence full frequency-domain detection algorithm based on zeros padding in time-domain.
介绍单载波频域均衡系统的随机接入方案,提出一种基于补零扩展的Zadoff-Chu序列的前导检测算法。 使用素数Zadoff-Chu序列作为用户签名,接收端采用基于时域补零扩展的频域检测方法进行前导检测。
参考来源 - 基于补零的Zadoff·2,447,543篇论文数据,部分数据来源于NoteExpress
一个版本没有精度说明符或一些模糊的特性(例如补零)将是完美的。
A version without precision specifiers or some obscure features (zero-padding for instance) would be perfect.
对非2的整次幂长序列进行补零,成为2的整次幂序列后应用FFT算法计算频谱。
When the FFT of Sequence with non-integral power of 2 is processed, sequence of integral power of 2 is obtained by zeropadding.
注意:1掌握数据输入、输出基本语句;2掌握数据补零的编程要求;3掌握实信号频谱对称性原理。
Note: 1 master data input, output of basic statements 2 master data zeros programming requirements 3 grasp the real signal spectrum Symmetry Principle.
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