您要查找的是不是:
- We analyse statistics properties of ground clutters and study AR model of correlated clutters power spectral density. 分析了地杂波统计特性,研究了相关雷达杂波功率谱特性的AR模型及其模拟方法。
- clutter power spectral 杂波功率谱
- The calculation of sea/land clutter power to airborne PD early warning radar is a hot and difficult problem of EW simulation. 机载脉冲多普勒预警雷达海地杂波功率计算是电子战仿真研究的一个热点和难点问题。
- At last,a simulation example of main lobe clutter power for low altitude and ... 最后给出了一低空远界理论弹道主瓣杂波功率的仿真样例。
- It is concluded that MDV is determined by the clutter power spectrum spread and the rank of MTI filter, not by the pulse repetition frequency. 得出的结论是:MDV由杂波功率谱宽度和MTI滤波器阶数决定,与脉冲重复频率无关。
- It is very important to study the signal to clutter ratio(SCR) and the power spectral density(PSD) of the clutter as a basis for studying the target detection in the background of clutters. 关于信杂比及杂波谱的研究对于杂波背景下目标的检测具有重要的指导意义,然而窄带雷达已有的相关理论在超宽带雷达中已经不再适用,需重新进行研究。
- Methods:Sixtyfour patients in cognition function were studied by BEAM and CT,with the power spectral analysis. 方法 :应用脑电地形图(BEAM)和计算机断层扫描(CT) ,通过对64例AICA患者认知功能进行评估。
- A self-adaptive feature extraction method based on power spectral centroid is proposed. 摘要提出一种基于功率谱重心的自适应特征信息提取方法。
- FFT power spectral patterns can extract the periodic characteristics so that they can be compared,identified and classified quantitatively. 因此,木材解剖特征FFT图谱的研究对于木材的鉴别、分类及演化规律的研究都具有十分重要的意义。
- Classical Doppler Power Spectral (DPS) is not applicable because there are many kinds of distribution of Power Azimuth Spectrum (PAS) in MIMO system. 摘要MIMO系统中的角度功率谱有多种分布形式,所以经典多普勒功率谱不再适用。
- The paper analyses the signal processing with emphasis on Signal to Noise Ratio (SNR) in output of correlator and SNR in signal power spectral density. 并对算法处理中相关器输出中的信噪比(SNR)和功率谱密度中的SNR进行了重点分析。
- With the power spectral density, the vibration mechanism and the vibration transfer process of viaduct caused by the traffic load were introduced. 摘要从功率谱的角度介绍城市高架桥梁在交通荷载下产生振动的机理和振动的传递过程。
- The power spectral density of gearbox vibration signals is estimated by the periodogram from which original feature sets are derived. 为了使诊断结果更好地可视化,利用遗传编程结果的固有随机性,提取两个新特征指标。
- In practical application,one of the difficulties is the adjustment of the power spectral density function to various soil conditions. 在实际应用中,调整功率谱密度函数以适应各类场地土仍是一项困难的工作。
- The statistical method for calculating the power spectral densities of of binary signals given by Bennett is extended to those df multi-state digital signals. 本文把Bennett给出的二进制数字信号功率谱密度的系统综合算法推广到常见的多态数字信号。
- Two cases of power spectral intensity function for the earthquake acceleration imput at the base rock are considered: the white noise spectrum and filter white noise spectrum. 计算结果表明,1)在基岩输入地震加速度的功率谱为白噪声谱的情况下,土层的最大期望反应均有别于过滤白噪声谱时的相应值;
- Therefore, experience is needed to made good analysis.We dealt with the colonic pressure data by analyzing its power spectral density(PSD).The PSD is com... 本文对实际采集的结肠压力信号进行功率谱密度分析,并与结肠的基本功能相对照。
- This paper presents a IJF coding method based on filter shaping, and deduces IJF power spectral density adopting this method.Finally this paper simply introduce FQPSK modulation. 本文介绍基于滤波器成形法的IJF编码,并推导基于该法的IJF功率谱密度,在此基础上简要介绍了FQPSK调制体制。
- The density of power spectral entropy, on the whole, is an exponential decline curve with frequency augmentation without reference to water flooded extent. 功率谱密度不论水淹程度如何,整体为一随频率增大其能量按指数递减连续频谱;
- His room is always in a clutter. 他的房间总是凌乱不堪。