- 更多网络例句与频率转换器相关的网络例句 [注：此内容来源于网络，仅供参考]
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Secondly, an integrated capacitive signal conditioning circuit is newly proposed.
其次，本论文最新地提出一积体化之信号调节器，其为互补式金氧半导体之电容频率转换器且具有数位补偿器。
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By utilizing the cross-gain modulation effect and the period-one oscillation harmonic frequency-locked in an optically injected semiconductor laser, we can extract the wavelength conversional individual channel optical clock from the optical-time-division-multiplexing signal. In a FP-LD, we numerically simulate the extraction of 20 GHz optical clock at 1550 nm from the 2×20 Gb/s OTDM signal at 1555 nm, and experimentally obtain the -105 dBc/Hz phase noise frequency division clock of 12.36 GHz to 6.18 GHz with simultaneous wavelength conversion from 1550.24 nm to 1545.91 nm.
采用一个FP半导体激光器作为全光分路时钟提取及波长转换器，数值模拟实现了从波长为1555 nm、速率为2×20 Gb/s的光时分复用信号中提取出波长转换为1550 nm、重复频率为20 GHz的分路光时钟，实验完成了从波长为1550.24 nm、重复频率为12.36 GHz光脉冲信号中提取出相位噪声为-105 dBc/Hz的波长为1545.91 nm、重复频率6.18 GHz的分频光时钟。
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7 To 3.3 V operating supply voltage 44.1 kHz sampling frequency 16.9344 MHz (384fs) system clock Built-in crystal oscillator circuit 16-bit, MSB rst, rear-packed serial data input format ( 64 fs bit clock) 8-times oversampling digital lter · 32 dB stopband attenuation ·+0.05 to -0.05 dB passband ripple Deemphasis lter operation · 36 dB stopband attenuation ·-0.09 to +0.23 dB deviation from ideal deem- phasis lter characteristics Attenuator · 7-bit attenuator (128 steps) set by microcontrol- ler Soft mute function set by parallel setting ·(approximately 1024/fs total muting time) Mono setting · Left or right channel mono selectable by micro- controller Built-in innity-zero detection circuit , two-channel D/A converter · 3rd-order noise shaper · 32fs oversampling Built-in 3rd-order post-converter low-pass lters 24-pin VSOP package Molybdenum-gate CMOS process
2.7至3.3 V工作电源电压为44.1千赫的采样频率16.9344兆赫（384fs）系统时钟内置晶体振荡器电路的16位，MSB在前，后包装的串行数据输入格式（64飞秒位时钟）8倍超采样数字滤波器·32分贝的阻带衰减·+0.05至-0.05分贝通带纹波去加重滤波器的运作·36 dB抑制频宽衰减·-0.09到0.23 dB的偏差认为不理想，症状困扰评估滤波特性衰减器·7位衰减器（128级）集由单片机在-莱尔软静音功能的平行设置·（共约1024/fs静音时间）单声道设置·左或右声道单声道微控制器可选的内置的无限零检测电路Δ，两通道的D / A转换器·第三阶噪声整形·32fs过采样内置三阶后转换器的低通滤波器24引脚VSOP封装钼栅CMOS工艺
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The relationships between the frequency characteristics of type Ⅱ servosystem and dynamic performances are studied. An approch to dynamic design of RDC is proposed and experimental results have demonstrated that this dynamic design method is effective.
从动态分析的角度出发，文中导出了跟踪型轴角数字转换器的动态数学模型，探讨了典型Ⅱ型伺服系统频率特性与跟踪性能指标的关系，进而给出了转换器的动态参数设计方法。
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And this causes a frequency change Δf. The resonant point tracing algorithm describes how to detect Δf. So it can introduce a feedback frequencydifference -Δf through a closed loop to realize the resonant state o In the digitaldetection scenario, using staircase wave to replace saw tooth wave, it can overcome a lot of shortcomings in the analog system. The character of the staircase wave affects the detection precision directly. This thesis analyzes a high precision scenario producing a staircase waveform in detail. It can reduce the number of the bits in D/A converter greatly. This thesis proposes another method to improve the detection precision in case that the A/D converter has comparatively little number of bits, while this method will not increase the cost of the system greatly.
在谐振式光纤陀螺中，环形谐振腔的旋转使得谐振腔的谐振频率发生了变化，从而产生了一个与旋转速度成正比的频率变化值△f，谐振点跟踪算法描述了如何检测出△f，从而可以通过闭环在系统中引入反馈频差-△f，实现光路的谐振状态；在数字闭环检测方案中，用阶梯波作为反馈信号来代替锯齿波，可以克服原来模拟系统中锯齿波的很多缺点，阶梯波的性能直接影响着系统的测量精度，本论文详细分析了一种高精度阶梯波生成方案，使得所需D／A的位数大大降低；本文还分析了A／D转换器对系统测量精度的影响，提出了一种A／D转换器位数较少的情况下提高系统测量精度的措施，同时又不会增加太多的系统成本。
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High precision of data acquisition of accelerometers signal is achieved with V/F convertors.V/F convertors convert accelerometers analog signal into impulse which is transmitted to FPGA and converted digital signal.
为保证其高精度，采用了基于电压-频率转换的数据采集单元来完成加速度计信号的数字化。V/F转换器将加速度计输出的模拟信号转换为脉冲量，FPGA采集脉冲量并转换得到自标定模型所需数字量。
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This paper simulates how the additional flutter signal impacts on oil pressure and actuator output when the dead zone is kept. The proper principle of flutter signal for jam diagnosis is given. Based on the given flutter signal, different jams caused by jam of the EH servo valve under different operating condition are simulated and the output of the oil pressure and actuator are presented. Meanwhile, waving threshold of the oil pressure for jam diagnosis is given. The simulations and analysis prove that the jam fault identification of the EH servo valve based on flutter signal is feasible.
在应用附加振颤信号防止和识别卡涩故障的前提下，确定了振颤信号的选取原则，并采用仿真的方法深入探讨了3种变工况条件下不同卡涩程度对电液转换器油压和油动机输出的影响，提出了油压阈值的卡涩判断标准，论证了基于振颤信号幅值与频率响应监测电液转换器卡涩故障诊断方法的可行性。
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The digital users signals comprising in-phase component and quadrature component are converted to analog baseband signals by digital-to-analog converters 104 and 114, which are followed by lowpass filters 106 and 116 for removing harmonics at unwanted frequencies.
包括同相分量和正交分量的数字用户信号通过数模转换器104和114转换成模拟基带信号，在数模转换器104和114的后面具有低通滤波器106和116，低通滤波器106和116用于去除在不期望频率处的谐波。
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Keyboard function set through waveform type,frequency,amplitude,duty cycle,and other parameters of a signal to the microprocessor 89C51 control,MAX038 generated by the various signals,In this process,four-channel signal through D/A converters have simulated voltage and current,It transported up through the analog signal amplification,it enters the frequency MAX038 coarse-IIN,fine-tuning FADJ end,the duty cycle control-DADJ. In its COSC port received a three relays and oscillation frequency capacitance as a choice.
通过键盘设定函数波形种类、频率、幅度、占空比等参数的一个信号进入单片机89C51控制，由MAX038产生各种波形信号，在此过程中信号通过四通道D/A转换器产生模拟电压和电流，它再通过运放将模拟的信号放大，它进入MAX038的频率粗调端IIN、微调端FADJ、占空比控制端DADJ、在它的COSC端口接一个继电器和三个振荡电容作为频率选择。
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As a result, dedicated transducers may be used which are particularly efficient in the narrower frequency range.
结果，可以使用专用转换器，该专用转换器在较窄的频率范围中特别有效。
- 更多网络解释与频率转换器相关的网络解释 [注：此内容来源于网络，仅供参考]
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ADAR：模拟-数字-模拟处理与测试系统
ADAC 模拟-数字-模拟转换器 | ADAR 模拟-数字-模拟处理与测试系统 | AFC 模拟-频率转换器
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analog-to-digital converter：模/数转换器
采样频率(采样率)=音频带宽,是指模数转换器(Analog to Digital converter)每秒对模拟声音进行测量并存储为数字信息的次数. 这个过程叫采样. 44.1 kHz是CD标准,也就是说对于每条音频通道,每秒有44,100个样本. 比特深度(Bit Depth)或解析度(Resolution)=动态范围(Dynamic Range),
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frequency converter：频率转换器
整合式的第二组信号源、信号结合网路、以及内建的脉冲产生器和调变器可以让PNA-X从单纯的网路分析仪成为放大器和频率转换器(frequency converter)的RF量测中心,充分运用PNA系列网路分析仪既有的功能和特性,包括透过LAN、USB和GPIB连接的先进能力;
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crossover frequency：交越频率
此外,还可利用这个输出电容来应付输出电流的瞬时脉冲,只要这个脉冲的"转角频率"(corner frequency)高于升压转换器的"交越频率"(crossover frequency);为了达成这个目标,必须选择一个高效能的电容,例如陶瓷电容或是"等效串联电阻和等效串联电感"(ESR/ESL)都很小的钽质电容.
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frequency discriminator：鉴频器
此系统使用一个鉴频器(frequency discriminator)将频率转换成电压,在全部的频率测量范围内,这可使瞬间频率测量具有12.5微秒(ms)的分辨率,以及50 Hz的频率分辨率(如图十四所示).
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EPROM：可编只读存储器
有一个可擦可编只读存储器(EPROM)用于8位二进制数字的开平方计算用,有一个D/A转换器和运算放大器配合的双积分型数字/频率转换器(VFC). 它可以配合管道内节流元件及差压变送器、流量变送器等用于管道内流体的计量.
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FOT FrequencyofOptimumTransmission：最佳传输频率
FOTC FrequencyofOptimumTraffic 最佳通信量频率 | FOT FrequencyofOptimumTransmission 最佳传输频率 | FrequencytoVoltageConverter 频率-电压转换器
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limiter：限幅器
模拟部分包括支持所有FM频段(76~108M Hz)的低噪声放大器(LNA)、限幅器(Limiter)、正交镜像抑制混频器(MIXER)、可调增益放大器(PGA)、高精度模数转换器(ADC)、高精度数模转换器(DAC)、频率合成器(Synthesizer)以及电源用的LDO.
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synthesizer：频率合成器
模拟部分包括支持所有FM频段(76~108M Hz)的低噪声放大器(LNA)、限幅器(Limiter)、正交镜像抑制混频器(MIXER)、可调增益放大器(PGA)、高精度模数转换器(ADC)、高精度数模转换器(DAC)、频率合成器(Synthesizer)以及电源用的LDO.
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ABE voltaic cell：伏打电池
AFT voltage-to-frequency converter 电压-频率转换器,电压-频率变换器 | ABE voltaic cell 伏打电池 | voltmeter, digital 数字电压表