研究了信号的翻转概率与信号概率之间的关系,并由此得到信号翻转次数的表达式。
The expression of the number of signal transitions as a function of the number of applied input vectors and input signal probabilities is derived.
根据信号、本底的时间分布以及时间、时间误差、质量、质量差等变量之间的关系,构建概率密度函数。
The probability density function (PDF) is constructed from the time distributions of signal and backgrounds and the relations among time, time uncertainty, mass, and mass difference variables.
首先,对侦察雷达所能探测到的目标雷达信号的载频、脉宽、重频,应用证据理论将其组合,得到雷达参数的联合概率分配函数。
Firstly, the obtained radar signal radio frequency, pulse width, repeat frequency are composed to get a combined probability assignment function of radar parameters by applying D-S method.
预警系统分2个级别,红色信号属I级,表示细菌性食物中毒概率大于25%,黄色信号属II级,表示中毒概率为15% - 25%。
A red alert will mean a 25% or more risk of bacterial food poisoning, while a yellow alert will warn of a 15%-24% possibility.
随机脉位调制信号不仅具有良好的距离和速度分辨力,而且具有较低的被截获概率和较高的抗干扰性能。
Random pulse position modulation (RPPM) signal not only has good resolution of distance and velocity, but also has low probability of interception and strong properties of eccm.
建立在数据率转换技术之上的宽带数字侦察接收机要求能够实现高截获概率、高灵敏度、近乎实时的信号处理能力。
Based on data rate conversion technology, wideband digital EW receiver is able to achieve high intercept probability, high sensibility and the ability of approximately real-time signal processing.
低截获声纳通过选择合适的发射信号,在保持探测能力的同时,降低被敌方侦察声纳截获的概率。
Low probability of interception (LPI) sonar selects appropriate transmitting signals and reduces the probability of being intercepted by hostile scouting sonar while it maintains detection capability.
LFM信号具有更高的距离、速度分辨率,以及更好的低截获概率特性。
The LFM signal has a high resolution of range and speed, as well as low probability of intercept.
以声表面波滤波器组为核心的信道化接收机,可以实现对雷达信号的宽频的信道化接收和100%的截获概率。
Channelized receiving of wide band radar signal and 100 percent of probability of intercept can be realized by channelized receiver based on SAW filter Banks.
介绍运用概率统计参量描述工程信号变量间的相关性,及相关分析技术在工程测试中的应用。
Probability statistics parameter was used to describe the pertinence of engineering signal variables as well as the use of correlate analysis technology in engineering test.
宽带雷达对抗侦察数字接收机具有较宽的瞬时频率覆盖特性和较高的截获概率,并能处理同时到达的多个信号。
Wide frequency spectrum can be received and high probability of intercepting can be got and the simultaneously attend signals can be processed by wide band radar EW reconnaissance digital receiver.
以增加错认(或虚惊)概率为代价,可以在很宽频谱范围内分辨微弱的信号。
At the expense of increasing probability of misinformation (false alarm), weak signals in very wide range of frequency spectra may be resolved.
伪随机噪声在数字信号处理中具有重要的实用价值,白噪声是产生具有指定概率分布的伪随机噪声的基础。
The pseudo-random data are widely applied in digital signal processing. White noise data is the basis of generating random data, which has the expected probability distribution.
在探测器产生光电子的概率为泊松分布和高斯分布的情况下,分别对信号的探测率和虚警率进行了定量的计算。
When the probability of the photoelectrons produced by the detector is of Poisson or Gaussian distribution, the detectivity and false alarm probability of the signal are calculated respectively.
以实测信号为依据,通过幅值域分析,探讨了拖拉机液压系统力调节弹簧刚度的概率设计方法。
According to amplitude analysis of the measurement signal, the probability DE sign method of finding the spring stiffness of the tractor's hydraulic draft control system is stud ied.
由于MQAM信号的概率密度函数服从莱斯分布,从而用莱斯分布来构造识别算法。
Because the probability density function of MQAM signal obeys L-S distribution, so it may construct the algorithm of discerning with L-S distribution.
理论分析和计算机仿真都表明,星敏感器的测量精度和焦距,下行信号光的束散角将影响激光链路成功建立概率。
Theory analysis and computer simulation show that the precision and focus of star tracker, the divergence angle of down beam influence the probability of laser link setting up.
深弹引信在对目标进行探测的过程中会遇到来自邻近深弹回波信号的干扰,邻弹干扰是导致虚警概率增加的最主要因素。
In the process of target detection, depth bomb fuze will undergo the interference from echo signal of neighborhood bomb that is the primary factor which causes high false-alarm probability.
目前已经出现了四种主要的外汇危机预警模型,即信号方法、概率单位方法、截面回归方法以及主观概率法。
There has been four kinds of main early warning models of exchange crisis at present, namely "signal" approach, probit model, cross-county regression model and subjective probability method.
仿真结果表明,周期斜率方差检测器是一种恒虚警概率检测器,在较低信噪比下可有效检测双曲调频信号,并对多普勒失配有很好的适配性。
The simulation result shows that VPSD is a kind of constant false alarm rate detector, which can detect HFM signal effectively in low SNR, and can adapt to the Doppler mismatch very well.
给出了当输入信号为等概率的四进制脉冲幅值调制(PAM)时,系统输出理论渐近误码率计算公式。
Furthermore, the expression of stationary bit error rate of system output corresponding to equiprobability quaternary pulse amplitude modulation (PAM) input signals was deduced.
然后将构件损伤引起的标准化的损伤信号指标输入概率神经网络,进行损伤构件所在侧面及所在层的判定;
Secondly, the profile and layer of the damaged member is also determined by probabilistic neural network with input of the normalized damage-signal index.
导出了信号截获因子与信号参数的关系,认为大的时间带宽积是低截获概率信号的必要条件。
The relation between the interception factor and signal parameters is deduced. Large time bandwidth (TB) product is a necessary condition for an LPI signal.
相位编码信号是低截获概率雷达信号的主要形式之一,能够提高雷达的生存能力。
As the major type of signals of LPI radars, the phase-coded signals can enhance the radar survivability.
最后,分析了参差脉冲重复间隔步进频率信号的低截获概率特性。
Finally, the Low Probability of Intercept (LPI) of SPRI-SF radar signal is analyzed.
低截获概率(LPI)信号的测向是现代电子战的一大难题。
Direction finding of low probability intercept (LPI) signals is the difficult problem in modern EW system.
利用概率密度技术捕捉声信号的微小变化,能够有效地识别气侵并报警。
The possibility density technology was used to entrap a little change of acoustical signal, which can discern the gas incursion and give the alarm efficaciously.
以信号探测和概率统计为理论基础,对星等探测灵敏度、星等有效范围和星探测概率进行了分析与估算。
Estimates the magnitude sensitivity, magnitude valid range and probability of star capture based on signal detection and probability statistics.
在工程应用中,信号处理算法的处理能力和处理速度两个方面对截获概率同样重要。
In engineering application, the two aspects of algorithm: processing capacity and processing speed, to interception probability are equally important.
研究存货质押贷款中,当信贷人对借款人质押前违约概率信息不对称时,考虑借款人信号发送行为时对借款人的甄别。
On inventory pledge loan, creditor can screen on borrowers with asymmetric information of ex ante default possibility, when taking into account borrowers' signaling action by acquiring a credit score.
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