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- Theoretic analysis and simulative result indicate that the generator can produce multi channel and high density signals synchronously, and has widest output frequency band. 理论分析和仿真结果表明，该系统能够同时产生多路高密度通信信号，并且有很宽的输出频带。
- How may copies of each output frequency are required? 需要多少个输出?
- We have shown that using filter bank theory, the multicarrier transceiver can be formulated into an MIMO (multi input multi output) LTI system. 我们利用滤波器组理论将多载波收发器化成多输入多输出（MIMO）且线性非时变（LTI）系统。
- Abstract The power automatic control system on nuclear heating reactor (NHR) is a multi input &multi output non linear system. 摘要 核供热堆功率自动控制系统是一个多输入多输出的非线性系统。
- You can use Enable to lower the output frequency by connecting it to a prescaler. 通过连接前置比例器，使用使能来降低输出频率。
- The MUX operates up to 3.2 Gbps with a 2.5V power supply, while the maximal output frequency of the CMU is 4.2 GHz. 在2.;5 V电源电压下;时钟倍频单元最高能够产生4
- If the sampling frequency is less than this, we can expect a serious distortion of output frequency which is generally referred to as aliasing. 如果取样频率小于此数，那么输出频率就要产生严重畸变，通常假频指的就是这种情况。
- Ultrasonic Output Frequency The majority of the ultrasonic cleaning that is done in industrial applications today uses 40 kHz as a base frequency. 超声波输出频率目前大多数工业清洗应用中把40千赫作为基础频率,较低的工作频率。
- Another existing solution implements a non-switching PLL with single-side-band (SSB) mixing to shift the output frequency from the PLL to desired band. 另一个解决方法为使用一个固定的锁相迴路及单侧频带混波器将由锁相迴路输出之频率平移至想要的频带。
- Current/frequency (I/F) converter is a kind of charge balance circuit, by charge balance, output frequency and input current has close linearity. 摘要I/F（电流／频率）转换电路本质上是一个电荷平衡式转换电路，利用电荷平衡法，输出脉冲频率与输入电流有精密的线性关系。
- multi input multi output technology 多输入多输出技术
- The oscillators used in RF transceivers are usually embedded in a synthesizer environment so as to achieve a precise definition of the output frequency. 震荡器被使用在射频收发机中通常是被使用在一个同步环境中以便达到一个准确的输出频率。
- A digital controller, consisting of hardware and software, will be established to regulate output frequency, output current and quality factor of the resonant circuit. 计划中将设计一控制器，使得输出电流频率、大小及共振电路之品质因数均由此控制器调节。
- The phase noise of a phase-locked VCO will be at least 6dB worse than the phase noise of the divided reference for each octave between the comparison frequency and the VCO output frequency. 大部分数字相位探测器在两个输入一致的模拟输出变化不超过的小范围有死区。
- In data processing of expanding spread, output frequency is normally affected by earth filtering and NMO stretching and decreases as offset increases,which makes high resolution of final data impossible. 在进行长排列地震资料处理时,由于大地滤波和动校拉伸等因素的影响,存在随炮检距增大频率降低的现象,难以获得高分辨率的资料处理结果。
- As the referenced frequency is fixed, the output frequency, the phase quantization noise and the resolution of frequency and phase are due to frequency word, the value of ROM and the bits of D/A converter, the bits of accumulator and ROM respectively. 时钟频率给定后,输出信号的频率取决于频率控制字,频率分辨率取决于累加器位数,相位分辨率取决于ROM的地址线位数,幅度量化噪声取决于ROM的数据位字长和D/A转换器位数。
- The disadvantages of DDS (direct digital frequency synthesizer) are rather low output frequency and a large set of the spurious signals, and one reason of the spurious signals is phase truncation. 摘要直接数字频率合成(DDS)的缺点在于输出频率低和存在大量的杂散信号，而杂散信号产生的原因之一就是相位截断。
- In the Coordinate DDSs system the time-sharing output and the accurate synthesis of respective output frequency bands are the main problems, which are solved by Micro-processor PIC16F874 controlling the DATA FSK signal. 在并行DDS系统中，两个DDS的分时输出以及频率的精确接续是实现的难点。 本文用单片机PIC16F874控制DDS的DATA FSK信号很好地解决了这一问题。
- It adopts DDS + PLL frequency synthesizer scheme to realize low end frequency 2~4GHz output,then through segment amplifying multiplying chain realize from 2~4GHz expand to 2~12GHz,and the output frequency is selected by microwave switch. 采用DDS+PLL的混合频率合成方案实现低端频率2~4GHz的输出,再通过分段放大倍频链路实现从2~4GHz到2~12GHz的扩频,并由微波开关控制选频输出。
- Since the output frequency is an integer multiple of the input frequency, it is impossible to decouple the ties among these parameters and the performances of the synthesizer are thus limited. 由于整数型合成器的输出频率一定是输入频率的整数倍，因此这些参数之间的关系是无法改变的，也因此频率合成器的特性便会受到许多的限制。
