correlation detection造句
例句与造句
- An adaptive threshold control algorithm based on correlation detection
一种基于相关检测的自适应门限控制算法 - Correlation detection scheme
相关检测线路 - 4 . a signal detection system based on the correlation detection technique is designed . and the configuration of the detection circuit is illustrated in detail
4 .介绍了相关检测技术的原理和优点,设计了基于相关检测技术的信号检测系统,并且详细介绍了信号检测电路的实现方法。 - Firstly , the paper introduces the character and the development of all - digital receiver , then an adaptive threshold correlation detection algorithm has been presented
本文首先介绍了全数字接收机的特点及其发展概况，然后介绍了一种用于信号捕获的自适应门限的信号相关检测算法。 - Based on the theoty of statistical dctection and research on distribution of dct coefficiefits , the chapter 3 proposes a robust 3d motion blind watermark detection algorithin , which is a sign correlation detection scheme
第三章基于统计检测理论与dct变换系数分布的研究，提出一个鲁棒的三维运动盲水印检测算法，它是一个dct变换域上的符号相关性检测算法。 - It's difficult to find correlation detection in a sentence. 用correlation detection造句挺难的
- In this paper , the detection and parameter estimation , are studied for ds - ss / bpsk signal with low signal - to - noise ratio , including square detection , cyclic spectrum detection , correlation detection and higher - order statistics - based detection
本文研究了包括平方倍频检测、周期谱检测、时域相关检测和高阶统计量检测四种针对低信噪比下ds - ss / bpsk信号的检测与参数估计方法。 - Several methods of sequence spread spectrum signals direction have been developed , such as energy detection , correlation detection , cepstrum detection , cyclic spectral , higher order cumulant detection , etc . these methods developed from the research of detection and estimation for ds signals
直扩通信信号检测的研究已发展出许多方法,如能量法、相关法、倒谱法、周期谱法及高阶谱法等。 - By making use of the characteristics of pseudorandom spread spectrum sequence in time - domain , this thesis has studied the time - domain correlation detection method of the dsss / bpsk signal and proposed the time - domain difference - accumulation detection method of the dsss / bpsk signal
利用扩频伪随机序列在时域上的特点,本文研究了dsss / bpsk信号的时域相关检测方法,并提出了dsss / bpsk信号的时域累差检测方法。 - At first , to estimating common parameters , in this dissertation three detection methods - square detection , spectrum correlation detection and cepstrum detection are applied to detect the ds / cdma signal . these three methods have different advantages and disadvantages respectively
为解决ds / cdma信号共性参数的估计,本文首先将三种检测方法:平方律法、周期谱法和倒谱法,应用到ds / cdma信号的检测与参数估计中。 - On this basis , the wavelet decomposition established on the time - domain correlation detection method provides a feasible scheme that improves performance , in a situation when it is impossible to design the pre - filter because the frequency band of the useful signal is unknown
本文在此基础上加以扩展,分析了dsss / bpsk信号的高阶统计量,并以此为基础进行检测。 4 .倒谱分析和周期谱分析近年来被广泛应用于对dsss / bpsk信号的研究。 - 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。 - The square detection can picks up the carrier frequencies , which is simple and has great performance . but this method can ’ t recognize the signal as spread spectrum signal . the spectral correlation detection method can estimates the chip rate of signal ’ s pn sequence
然后,针对异步的cdma信号,采用延迟相乘的方法检测用户数目,同时估计出各用户信号的幅值和相位;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。 - Two detection methods of chirp signals are presented in the dissertation : the cyclic autocorrelation detection method and the correlation detection method of cyclic autocorrelation function . it is shown that the two methods both have an excellent performance of blind detection . the performance analyses of the two detection methods are both carried out for additive noise or multiplicative noise , and the output signal - to - noise ratio ( snr ) expressions of the two methods are also derived
通过研究提出了两种线性调频信号的检测方法?基于循环自相关函数包络的检测方法和基于循环自相关函数的相关函数包络的检测方法，两种方法均可实现信号的盲检测，有良好的检测性能，文中还分析了加性噪声及存在乘性和加性噪声情况下两种检测方法的性能，推导出了输出信噪比公式。 - According to the principle of correlation detection , an automatic measurement system for extinction ratio of polarizer consisted of monochromator and dsp lock - in amplifier and compurer is designed not only to eliminate the influence on measurement accuracy caused by drift of intensity of light source but also to obatain approximate extinction spectrum
摘要基于相干检测原理设计了一套由单色仪、数字锁相放大器和计算机联合使用的透射式偏光镜消光比智能化测试实验系统，采用双频双光路分光单探测器接收锁相放大器分离信号比对法进行源补偿测量，克服了光源光强漂移所带来的影响；实现了可见光区消光比的精确自动测量，而且可以测得近似的消光光谱。 - Optical fourier transformation lens are designed automatically mainly depending on optical design software . after the optical original system being worked out by p , w method , they can be designed automatically by using computer . every parameter of the system is changed simultaneously and aberration is adjusted according to optimizing theory , after the parameters are iterated a lot of times , perfect fourier transformation system is obtained , and the requirement of optical correlation detection can be satisfied
光学傅立叶变换透镜的设计，主要利用光学设计软件进行光学自动设计，用p 、 w法初步计算出光学原始系统，再利用计算机进行自动设计，按优化理论对光学系统的各个参数同时给出不同的改变，进行像差校正，经多次迭代后可得到比较理想的傅立叶变换系统，使该系统能够满足光学相关探测的要求。