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- Wavelet packet is used for noise speech decomposition,which is better than the traditional orthogonal wavelet threshold de-noising method. 采用小波包对含噪语音进行分解,克服了传统的正交小波变换的缺陷。
- orthogonal wavelet packet modulation system 小波包多载波系统
- A software method of frequency-modulated signal demodulating based on orthogonal wavelet packet 基于小波包的调频波解调软件方法
- Noise Cancelling and Spectral Analysis of Instantaneous Signals Based on Orthogonal Wavelet Packet 基于小波包的瞬时信号去噪与频谱分析
- Impulse Response Identification Based on Varying Scale Orthogonal Wavelet Packet Transform 基于变尺度正交小波包变换的脉冲响应辨识方法研究
- orthogonal wavelet packets transform 正交小波包
- An Algorithm for Impulse Response Identification Based on Fixed Scale Orthogonal Wavelet Packet Transform 基于固定尺度正交小波包变换的脉冲响应辨识方法研究
- Determination of Rifampicin and Isoniazide Tablets with NIRS Based on Orthogonal Wavelet Packet 基于正交小波包的异福片近红外光谱分析
- Orthogonal wavelet packet 正交小波包
- Keywords orthogonal wavelet packet transformation;near infrared reflectance spectroscopy（NIRS）;partial least squares（PLS）;quantitative analysis;rifampicin and isoniazide tablets; 正交小波包变换;近红外光谱;偏最小二乘法;定量分析;异福片;
- Firstly, the characters of wavelet transform and wavelet packet analysis were introduced. 首先，简略地介绍了小波变换与小波包分析的特点。
- The construction of the B-spline wavelet is simple, and it has better stability than the orthogonal wavelet. 摘要与正交小波相比，样条小波构造简单，对信号的重构具有更好的稳定性。
- We choose wavelet and wavelet packet because wavelet transform (WT) itself has the character of multiresolution. 之所以选择小波和小波包变换是因为小波变换本身就是多分辨率的，这使得它比那些固定分辨率的变换，比如STFT(短时傅立叶变换)更加适合人类的生理声学模型。
- A wavelet multiscale inversion (WMI) method using the orthogonal wavelet transform is applied to inverse two dimension seismic waveform. 多尺度反演具有对初始模型依赖性低、收敛速度快、反演结果稳定等优点,是一种很有希望的反演方法。
- The wavelet packet transform can be used to compress seismic data in large batch processing. 在大批量地震数据处理中可以使用小波包变换压缩地震数据。
- Aiming at M-QAM signal, WT-MMA (orthogonal Wavelet Transform based Multi-Modulus blind equalization Algorithm) is proposed. 4.;针对高阶QAM信号;提出了基于正交小波变换的多模盲均衡算法。
- Finally,the possibility of wavelet packet modulation application in Digital AM transmission system is discussed. 通过与基于离散傅里叶变换的正交频分复用调制系统进行比较 ,探讨了小波包调制应用于数字调幅传输系统的可能性
- In this paper we consider solving two-dimensional elliptic partial differential equation (PDE) via orthogonal wavelet and multigrid methods. 摘要考虑二维椭圆型偏微分方程的数值解。
- Abstract: We developed a real-time wideband speech codec adopting a wavelet packet based methodology. 摘要：本文论述采用小波包法进行实时宽带语音编码。
- In this paper,mean threshold is presented on which wavelet packet de noising is studied. 文中提出了平均阈值的概念 ;并在此基础上研究了小波包去噪的效果 .
