| 1. | The autocorrelation function is an even function . 自相关函数是一个偶函数。 |
| 2. | Methods based on spatial frequencies evaluate the coefficients of the autocorrelation function of the texture 基于空间频率的方法估计纹理的自相关函数。 |
| 3. | Maximum value method is fast but not accurate , autocorrelation function method is accurate and have a good effect form radar image according to their estimate methods 在多普勒中心频率估计中,最大值法简单,但精度不高,自相关函数法有较高的估计精度。 |
| 4. | Then by using the inverse autocorrelation function we get another means of moments parameter estimates on the ma part of arma ( p , q ) , cleveland - parzen estimates 从而通过逆自相关函数得到了arma ( p , q )过程ma部分的参数的另一种矩估计方法, cleveland - parzen估计。 |
| 5. | A scheme to identify the stochastic signal and its modes by computer is introduced and using the method of the autocorrelation functions for recognizing the stochastic audio signal fleet has been applied 摘要分析了利用自相关函数法实现快速识别随机音频信号,介绍一种用计算机实现随机音频信号处理与模式识别的硬件结构和程序设计。 |
| 6. | To model the elastic properties of rocks with distribution fractures , a new heterogeneous anisotropic constitutive model was presented . in this model , the autocorrelation function is used to describe the spatial distribution of crack number density 提出一种新的非均匀各向异性本构模型来模拟具有分布裂缝的岩石,在这个模型中用自相关函数来描述裂纹数密度的空间分布。 |
| 7. | The core of the proposed new cdma system is the use of orthogonal complete complementary codes , whose autocorrelation function is zero for all even and odd shifts except the zero shift and , whose crosscorrelation function is zero for all possible shifts 在本系统中,利用完全互补码处处为零的互相关特性和自相关的旁瓣为零的特性,可有效消除系统的多址干扰,提高系统的容量。 |
| 8. | We consider a causal , stationary , autoregressive , moving average [ arma ( p , q ) ] process with heavy tailed noise variables . we develop the definition of the inverse autocorrelation function , and obtain the g - spectral estimator of the inverse autocorrelation function 本文基于噪声序列具有重尾分布的因果、平稳自回归滑动平均[ arma ( p , q ) ]过程,给出了其逆自相关函数的定义,并且给出了逆自相关函数的g -谱估计。 |
| 9. | The correlation detection using the periodicity of the direct sequence autocorrelation function can estimate the symbol period at intermediate frequency or at baseband . simulation results indicate that the former is superior to the latter when the demodulated frequency is unequal to the carrier frequency 时域相关检测方法利用扩频信号的周期自相关特性,能在中频和基带对扩频码周期进行估计,仿真结果表明中频检测时性能较好。 |
| 10. | 3 . the calculating table of the autocorrelation functions are constructed and their essence and abilities are revealed . furthermore , the new concept of general autocorrelations is presented for the calculation of the order of sac ( strict avalanche criteria ) and pc ( propagation criteria ) 3 、构造了自相关函数的计算表,分析其本质含义,解释其在分析密码性质方面的功能;进而提出了广义自相关函数的概念,有效地解决了严格雪崩准则和扩散准则阶数的确定问题。 |