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- target signal effects 目标信号效应
- Based on the mathematical model of target signal of millimeter wave radiometer on bomb, the digital simulation is made of the target signal. 摘要从弹载毫米波辐射计的目标信号数学模型出发,对目标信号进行了仿真计算。
- Overlapped low-frequency interruption and random noise usually exist in singularity target signal recognition. 摘要奇异性目标信号检测中往往存在叠加型低频干扰及随机噪声的污染。
- In addition, so called "tropospheric" signal effects were complicating station coverage predictions and signal propagation studies. 另外,所谓的"对流层"信号作用使驻地覆盖面预言复杂化并且信号传播学习。
- This system could modulate the voice signal effectively. 可以对语音信号进行有效的调制。
- Based on the mathematical model of target signal of millimeter wave radiometer on bomb, the digital simulation was made on the target signal. 从弹载毫米波辐射计的目标信号数学模型出发,对目标信号进行了仿真计算;
- This method filters the blocks formed of frames and windowed by 2D window.Then the target signal samples are smoothed in local. 采用多帧组合成块的结构进行二维加窗滤波,然后辅以局部平滑的技术,可以有效抑制噪声,并防止乐性噪声出现。
- In this paper,the hardware and software of the automatic test system are designed based on DSP technique,CPLD technique,target signal simulation,VISA technique,and ODBC technique. 本文基于DSP技术、CPLD技术、回波信号模拟、VISA和ODBC等技术;完成了引信自动测试系统的硬件及软件设计.
- The clutter is predicted exactly and subtracted from the input signal by RLS adaptive filter,leaving components of the target signal in the residual noise. 通过RLS自适应滤波器,背景杂波分量被准确地预测并从输入信号中去除,从而只剩下目标信号与残留噪声。
- This paper research the vibration motivation and vibration signal effect with different inspirit factor,and analyze concoct effect because of concussion which is caused by fault of bearing and gear. 本文首先对齿轮和轴承的振动机理以及各种激励因素对振动信号的影响进行了详细研究,并分析了由于齿轮、轴承故障的存在所引起的冲击对振动信号产生的调制作用。
- Harmonic wavelet analysis can extract the singular components in the non-stationary signal effectively. 摘要谐波小波分析可有效提取非平稳信号中的奇异成分。
- MCU AT89C51 is adopted to control DDS chip AD9850 to produce the sine signal which frequency may be adjusted. The pure signal can be obtained through the low pass filter,and then target signal is drove by the power amplifier. 采用单片机AT89C51控制DDS芯片AD9850产生频率可调的正弦信号,并通过低通滤波器得到纯正的信号,最后经过功率放大驱动电路输出目标信号。
- Abstract: In this paper, the hardware and software of the automatic test system are designed based on DSP technique, CPLD technique, target signal simulation, VISA technique, and ODBC technique. 摘 要: 本文基于DSP技术、CPLD技术、回波信号模拟、VISA和ODBC等技术;完成了引信自动测试系统的硬件及软件设计.
- Much will depend on unilateral measures to put domestic houses in order and the competitive, signalling effect they will have on other governments. 这在很大程度上将取决于解决国内问题的单边措施,以及这些措施将对其它政府产生的竞争性和信号性影响。
- A signal and noise separator based on SVM whose kernel function is Gauss function was used to distinguish the target signals from noises, and enhance the SNR by removing noises. 采用以高斯函数为核函数的SVM所构成的信噪分离器,对信号和噪声进行识别和分离,从而消除噪声,得到高信噪比的超声回波信号。
- Simulation shows that this algorithm can separate source signals effectively. 仿真表明,该算法能够有效地分离出源信号。
- Experiments show that using active electrode can improve ratio of signal and noise, reduce noise and detect surface EMG signal effectively. 实验表明,采用有源电极可以提高信噪比,减小噪声,有效地提取出表面肌电信号。
- The experiments showed that active electrode could be used to improve signal/noise ratio, reduce noise and detect surface EMG signal effectively. 实验表明 ,采用有源电极可以提高信噪比 ,减小噪声 ,有效地提取出表面肌电信号。
- To remove the noise in the signal effectively, a new signal de-noising algorithm based on multi-scale products in wavelet domain is presented. 摘要为了有效地去除信号中的噪声,提出了一种基于对称小波多层系数乘积的信号去噪算法。
- The Signal Effect of Rounds of Venture Capital 风险资本分期投资的信号效应分析