若采样长度与回转速度不吻合，将会出现伪周期，使主值函数项中提取周期成分后的信号失实。
If sampling length doesn't adapt rotative velocity, the results of calculation by FFT or periodogram analysis will lead to pseudo-periods, which distorts the principal value function terms.
利用不动点理论，给出了一类半线性微分方程有界的调和伪概周期解存在的充分条件。
Using fixed point theorems, in this paper we give sufficient conditions of the existence of bounded mild pseudo almost periodic solution for some semilinear differential equations.
本文研究了两类具体含逐段常变量微分方程的伪概周期解的存在性问题和一类一阶微分方程组的数值解。
In this paper, the existences of almost periodic solutions and pseudo almost periodic solutions for several classes of functional differential equations are investigated.
针对激光制导武器使用的有限位伪随机码的特点，提出了对其最小周期的识别算法。
Based on the characteristic of the pseudo-random code, the algorithm of identify the minimum period was given.
本文主要讨论了伪随机序列的非周期和周期相关特性。
The aperiodic and periodic correlation properties of pseudorandom sequences have been discussed.
伪信号，如果采样率慢于某一周期的8.5倍(见图10.24)，那么显而易见我们的重建信号与原始信号直观上一点都不像。
Aliasing, while not intuitive, is easy to observe (see Figure 10.24). If we sample 8.5 times slower (the circles), our reconstructed signal looks nothing like the original.
针对通信侦察等领域的需要，将梳形滤波器应用于自干扰载波下短周期伪码的截获中。
With the demand of such field as communication reconnaissance, comb filters application to capture of short cycle PN-code under self-jamming cartier is studied.
本文主要讨论了差分方程的概周期解与伪概周期解的存在性。
In this paper, we investigate the existence of almost periodic solutions and pseudo almost periodic solutions for difference equations.
事实上，由于伪码的周期性而导致的循环平稳是扩频信号的一个重要特征。
In fact, as the result of the period of a PN code, cyclostationarity is a key property of DSSS signal.
针对长周期伪码的快速搜索问题，提出一种通过扩展均值处理技术扩大伪码搜索范围的长码快速搜索策略。
Aiming at the question on rapid search for long code, a rapid search strategy of long code is proposed, which expands the search scope of pseudorandom code adopting expansion and average technologies.
被高速伪随机码调制的扩频信号，其伪随机码是具有随机编码信号特征的周期信号。
The spread spectrum (SS) signal is modulated by high-rate pseudo noise code, and belongs to typically periodic signal.
基于解决实际问题的需要，张传义教授提出了伪概周期函数和伪概周期序列。
Based on the need of solving practical problems, Professor C. Zhang proposed pseudo almost periodic function and pseudo almost periodic function sequence.
由于伪随机码固有的测距能力——其长周期和互相关特性，使得在测距距离和精度方面可以同时提高，采用码分多址技术可以实现对多个目标同时进行测控。
As the PN-code high performance of long period and the coherence, the very long distance and high precision ranging can be reached at the same time. Multi-target TT&C can be reached by CDMA of PN.
应用扩频原理，能大大改善水印嵌入的不可感知性。但由于采用扩频调制后，一个水印信息要用一个周期的伪随机序列调制，因此会增加嵌入的水印量。
Equally, spreading spectrum technology can improve the performance of watermark technology greatly, but it will increase the capacity of channel and the calculation of the algorithm as cost.
具有优良相关性，大线性复杂度，平衡性，长周期的伪随机序列广泛应用于CDMA系统，扩跳频通信系统。
Pseudo-random sequences with optimal properties such as correlation, high linear spans, balance and long period are widely used in CDMA system, spread spectrum and hopping communication systems.
分析了周期性对称调制伪模式的显示周期与平面宽度和调制周期内的调制脉冲数之间的关系。
The display period of periodic pseudo-pattern in a virtual 2-D plane is dependent on the pulse number in a modulation period and the display plane width, which is proved in this paper in detail.
该捕获方法在捕获到同步长周期伪码的同时，也得到了多普勒频偏值的近似值。
Using this method, the synchronized PN code phase and approximation value of Doppler shift are got.
该捕获方法在捕获到同步长周期伪码的同时，也得到了多普勒频偏值的近似值。
Using this method, the synchronized PN code phase and approximation value of Doppler shift are got.
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