Experimental results show that the satisfactory effects for pitch track smooth and surd / sonant decision with this method are gotten and the robust pitch determination is realized .

实验表明NCCFPDA算法在基音 轨迹的平滑和清/浊判别方面都具有令人满意的效果，能实现 基音周期的鲁棒性检测。

From structure of optical disk its signal trace can be viewed as a reflection grating so track pitch of optical disk and the length of the signal trace on a CD can be measured .

基于光盘的结构，将光盘抽象为一个反射光栅的模型，从而测出了光盘的 道 间距及信道轨迹长度。

Sports fields ( with 400-metre track and soccer pitch )

运动场（附设四百米 跑道及足球 场）

The algorithm can not only track rapidly changed pitch and enhance pitch estimation with irregular pulse but also make robust estimation of sharply changed pitch .

这种算法不仅能够 跟踪快变的 基音 周期，增强不规则脉冲时基音周期的估计；还能够鲁棒地估计陡变的基音周期。

The experimental results show that it can remove the jumper of pitch between the frames guarantee the exactness of pitch track and improve the accuracy of pitch estimation .

最后得到的实验结果表明，采用该方法对基音周期进行 跟踪 平滑处理，可去除语音帧之间基音周期的跳跃点，保证基音周期 轨迹的正确性，显著提高 基音 周期估计的准确度。

A Novell Method to Directly Measure the Optical Disk 's Track Pitch

一种直接测量光盘 道 间距的方法

An Indirect Method for Measuring Track Pitch of Laser Disc

光盘 伺服 槽 道 间距的一种间接检测方法

A standard such module is mainly composed of the link arm the link handle the track driven system the offset pitch joint the offset yaw joint and so on .

单个标准模块主要由中间通 孔式连接手臂、 履带驱动链传动装置、模块偏转锥齿轮传动装置、模块 俯仰链传动装置、连接柄等组成。

In this scheme the speech residual signal is synthesized directly using magnitude spectrum and phase track where there are continuous changes for pitch between frames while the speech residual signal is synthesized using phase intergradations with a burst of the pitch .

在该方案中，当帧间的 基音 周期连续变化时，语音残差信号由幅度谱和相位 轨迹直接合成，而当基音周期发生跳变时，则利用相位过渡过程合成语音残差信号。