Based on the fuzzy function of pulse train and linear step frequency signal, the performance of the two kinds of pulse trains is analyzed.
本文结合均匀脉冲串和载频线性递增脉冲串信号的模糊函数,分析了两类矩形脉冲串信号的性能;给出了旁瓣位置及幅度的数学描述及旁瓣抑制方法,结论为:载频线性递增脉冲串信号相对于均匀脉冲串信号提高了其距离分辨力却引入了距离旁瓣,但对于速度分辨力没有影响。
In this paper, the method of generating the basic Logistic-projection chaotic-sequence and its correlated characteristic are introduced; the fuzzy function of the chaotic phase-modulated waveform of fuze is deduced; the detecting property of the chaotic phase-modulated waveform of fuze is analyzed.
介绍了基本 Logistic 映射混沌序列的产生方法及其相关特性;推导了引信混沌调相波形的模糊函数;分析了引信混沌调相波形的探测性能;研究结果表明,混沌调相波形的模糊函数接近理想的图钉型,具有理想的测距、测速性能和较强的抗干扰能力。
Supposing that reverberation model is a time random process F(t) ,firstly this paper analyses and deduces the expression of reverberation welter according to the concept of fuzzy function, then establishes the model of anti - reverberation welter with linear frequency modulation signal.
在假设混响模型为一时间随机过程F(t)的基础上,利用信号模糊函数的概念,分析推导了混响干扰起伏表达式,建立了线性调频信号抗混响起伏模型,并对相同脉宽、相同主频条件下的调频信号和单频信号的混响起伏作了比较,用实验的记录结果证实了理论模型的合理性。
Application of Ambiguity Function Images and Probabilistic Neural Networksto Fault Diagnosis of Diesel Valve Train;
模糊函数图像与概率神经网络在柴油机气阀故障诊断中的应用
Kernel design based on the contour of the ambiguity functionand related timefrequency distribution;
基于模糊函数的等高线设计核函数及其时频分布
UWB radar signal DOA estimation based on ambiguity functions;
基于模糊函数的LFM UWB雷达信号滑动平均波达方向估计
Based on the ambiguous function of stepped frequency train of LFM pulses,this paper analyzes the reason why it produces range grating lobes and gives the signal parameters′ restriction to remove the grating lobes.
借助于调频步进信号的模糊函数分析距离栅瓣产生原因,并给出信号参数约束条件,以消除距离栅瓣;另一种方法是先把子脉冲串合成完整的线性调频信号,再进行压缩处理,这种方法可以避免栅瓣的产生,但是处理方法比较复杂。
In wideband system,ambiguity function of Linear Frequency Modulation(LFM) is coupled in delay and Doppler,and the main ridge of Wideband Ambiguity Function(WAF) is not simple linearity.
在宽带系统中,线性调频信号的模糊度函数不仅在时延和多普勒频移具有耦合性,而且其宽带模糊度函数的脊线已经不是简单的直线,使得进行目标参量估计变得复杂。
In wideband system,ambiguity function of linear frequency modulation(LFM)is coupled in delay and Doppler, and the main ridge of wideband ambiguity function(WAF)is not simple linearity.
在宽带系统中,线性调频信号的模糊度函数不仅在时延和多普勒频移具有耦合性,而且其宽带模糊度函数的脊线已经不是简单的直线,使得进行目标参量估计变得复杂,作者为了提高其估计精度在文献[1]中给出两种修正方法,本文从仿真实验角度来验证修正2方法的有效性,实验结果显示该方法估计高速目标的速度时可提高估计性能。
This paper studies the Ambiguity function of LFM(Linear Frequency modulation signals) as well as its synchronous performance on such bad transmission condition as multi-path effect in water,according to which the computer emulation and lacustrine experiment data both prove that this method is available in the synchronization of acoustic communication.
本文研究了线性调频信号(LFM)的模糊度函数及其在多径效应等水下恶劣传输条件下的同步性能,计算机仿真和湖上实验结果都表明该方法能够实现水声通信的同步。
Multiple parameters estimation of the direct sequence spread signal based on ambiguity function
基于模糊函数的直扩信号多参数估计
Analysis of the ambiguity function for airborne bistatic SAR system
机载双站合成孔径雷达模糊函数分析
Specific Emitter Identification Based on Ambiguity Function
基于模糊函数的雷达辐射源个体识别
A Research on Ambiguity Function of Symmetrical Triangular Frequency Modulated Pulse Compression Signal
对称三角调频脉冲压缩信号模糊函数
Improvement on Product High-Order Ambiguity Function by Iterative Filtering
利用迭代滤波改进乘积高阶模糊函数
Arithmetic of Fuzzy Number and Fuzzy Value Function with Equality Constraints
模糊数和模糊值函数的等式限定运算
secondly, the determination of fuzzy probability function ( subordination function ) ;
第二,模糊概率函数(隶属函数)的确定；
Fuzzy Newton Interpolation and the Representation of Fuzzy Spline Function
模糊牛顿插值及模糊样条函数的表示
PM-Fuzzy Valued Integral and Fuzzy Valued Functions Sequence;
PM-模糊值积分与模糊值函数序列
The Space of Fuzzy Chquet Integrable Functions and Set-valued Fuzzy Integral;
模糊Choquet可积函数空间与集值模糊积分
Parameter Identification of Fuzzy Model Using Modulating Function Method
利用调制函数法的模糊模型参数辨识
Differential of Fuzzy Functions with Two Variables and Fuzzy Wave Equations
二元模糊值函数的导数和模糊波动方程
On Henstock Integral of Fuzzy-Number-Valued Function in the Plane;
平面上模糊数值函数的Henstock积分
The McShane and Henstock Integrals of Fuzzy-Number-Valued Functions in n Dimensions;
n维模糊数值函数的McShane积分和Henstock积分
Choquet integrals of interval-valued functions and fuzzy number-valued functions
区问值和模糊数值函数的Choquet积分
Robust H_∞ control of fuzzy system via fuzzy Lyapunov-krasovskii function
基于模糊Lyapunov-Krasovskii函数的模糊系统的鲁棒H_∞控制
The Philosophical Consideration in Establishing the Membership Function of a Fuzzy Set;
模糊集合隶属函数确定中的哲学思考
Generalized Egoroff theorems of sequence of fuzzy valued functions
模糊值函数序列的广义Egoroff定理