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- nuclear targetting signal 核导向信号
- 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。
- 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。
- 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.
- A new nuclear power station is on the stocks here. 这座新的核电站在建造之中。
- 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。
- This old man is a famous nuclear physicist. 这位老人是一位著名的核物理学家。
- Plans for nuclear plants have been declassified. 建造核装备的计划已不再保密。
- They decided to establish a nuclear power station. 他们决定修建一所核电站。
- Nuclear energy remains a double-headed creature. 核能依然是一种有利也有弊的能原。
- Nuclear physics is a closed book to me. 核物理学是我完全不懂的一门学科。
- Nuclear physics is a closed book to most of us. 我们大多数人对原子核物理学一窍不通。
- His area of concentration is nuclear physics. 他的专门研究范围是原子物理学。
- Distinction of Two Overlapped Target signal in DBF 数字波束形成中密集目标分辨研究
- These submarines were armed with nuclear missiles. 这些潜艇装备有核导弹。
