这种“相差”信号提供更为清晰和详细的结果。
This "phase contrast" signal gives much clearer and detailed results.
而同一个信号在不同的时期强度相差悬殊。
The signal amplitude is quite different in the different period.
由于不同的光网络单元onu与光线路终端olt的距离不同，实际工作时到达接收端的信号的幅度，相位都相差很大。
Because the distances from different ONUs to OLT are different, the amplitudes and phases of the different signals will have significant difference when receiving the receive terminal.
该算法是对传统MUSIC方法的推广与变形，克服了要求接收信号数小于阵元数的局限，能有效估计时延不同、波达方向相差很小的多径信号的参数。
The algorithm is a development of traditional MUSIC algorithm, so the number of multipath signals can be most of the array elements and can be used to estimate the parameters of multipath signals.
低阶锁相环跟踪频率斜升信号时产生的稳态相差致使环路失锁，接收机无法锁定载波信号。
Due to steady phase error, low-order PLL has a trouble in tracking frequency ramp signals, so that the receiver cannot lock carrier signals.
通过移相电路获得相差90度的另一路信号，然后用可逆计数器实现稳定准确的周期计数。
Anoiher signal with 90 degree delay is obtained by phase shift circuit. The accurate and stable circle counting is done by a reversible counter.
而另一方面，现有的有关优化信号位相差的理论方法都是确定性的，通常忽略了车流的随机变动。
On the other hand, most of existing theoretical methodologies for optimizing the signal offset are deterministic in nature, which ignore the stochastic variations of vehicles.
光强高斯分布对散焦相差的曲率信号影响较大，信号百分比误差达到25%，对其他相差的曲率信号影响很小；
Intensity of Gaussian distribution impacts significantly the sensing signal of the defocus phase, in which the error percentage achieves 25%, but for other phase profile, the effect is ignorable.
球面聚焦超声相控信号设计中的难点主要体现在相差精度高，输出信号多等指标要求。
The design difficulties of the phased signals of spherical focused HIFU mainly include its high precision and excessive output channels.
该方法的缺点是各用户信号必须有一定的相差，同时用户数不能太多。
The shortcoming of spectral detection is its complexity and in need of long time to compute.
该方法的缺点是各用户信号必须有一定的相差，同时用户数不能太多。
The shortcoming of spectral detection is its complexity and in need of long time to compute.
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