控制信号

The composition of the system,injection and ignition signal generation and measurement of control map characteristics,as well as the control algorism of gasoline injection quantity and ignition advance angle were discussed in detail.

重点论述了该控制系统的构成、点火及喷油控制信号的生成方法，控制脉谱的制取过程以及喷油量、点火提前角的控制策略。

The output of the complex phase comparator (32) is converted to an analogue signal which is applied as a control signal to the transmitter VCO.

复相比较器（32）的输出被转换为一个模拟信号，该信号被作为一个控制信号送给发射机VCO。

The feedback signal and a reference voltage are compared by the comparator, and when the value of the feedback signal is equal to that of the reference voltage, the comparator produces a switch control signal to regulate the duty ratio of the switch circuit so as to stabilize the output voltage.

通过一个比较器比较这个反馈信号和参考电压，当反馈信号与参考电压的值相等时，此比较器产生一个开关控制信号调节开关电路的占空比以稳定输出电压。

Its software uses system self-detecting algorithm to assure measurement channel .It uses softening hardware technique software synchronic data sampling to trace the frequency of exterior signal, in other words , it gives sampling control signals 128 times of power net's frequency .It uses Direct Digital Frequency Synthetics algorithm to transform radical sine waveform parameter table into needed current. It uses FFT algorithm to get radical waveform altitude of current ,voltage and resistor .

整个系统在软件设计上采用系统自检验算法保证测量通道可用，采用硬件软化技术--软件锁相环技术，达到对外部信号频率的跟踪，给出频率为电网工频128倍的采样控制信号：直接数字频率合成技术将基波参数表转换成需要的电流信号，采用FFT变换及基波幅度的计算方法得到被测电流、电压基波幅度和电阻大小。

The software are partial mainly carries on operation processing to the crank rotational speed signal and the cam shaft datum letter equisignal, the output ignition control signal, and can penetrate the transmission line and PC software communication had achieved the prompt monitoring and the immediate curve revise goal.

软体部分主要对曲轴转速信号和凸轮轴基准信等信号进行运算处理，输出点火控制信号，并能透过传输线与PC软体通讯已达到及时监控与即时曲线修改的目标。

Desgns of MXI-2 control signals concerting circuit ,address modifier,priority selection daisy chain ,transceiver controller andsystem arbiter are introduced.

介绍了PC－MXI－2控制信号转换电路、地址修改码电路、优先选择菊花键与收发门控制信号电路和系统仲裁器电路的设计。

After signal is changed, the control that MCU inputs classics man-machine interface stocks double mouth RAM, DSP takes out these to control is measured and be controlled according to its electric machinery that finish from inside double mouth RAM, stock control double mouth RAM to be numerated by MCU as a result next show.

MCU将经人机接口输入的控制信号转换后存入双口RAM，DSP从双口RAM中取出这些控制量并根据它完成电机控制，然后将控制结果存入双口RAM由MCU读出显示。

To improve the system damping, the supplementary control of UPFC is proposed, with its input as the active power or the bus voltage angle difference of the tie line, and its output as the modulation signal to the main control.

UPFC的辅助控制则通过线路功率反馈或母线电压相位差反馈，产生控制信号以调制前述各定值控制中的参考值，如母线电压调制或线路功率调制，以增加系统阻尼，平息持续振荡，并通过小干扰分析考察了辅助控制的效果。

Full on-chip hardware support of semaphore signaling between ports Fully asynchronous operation from either port Separate byte controls for multiplexed bus and bus matching compatibility Supports JTAG features compliant to IEEE 1149.1 LVTTL-compatible, single 3.3V (150mV) power supply for core LVTTL-compatible, selectable 3.3V (150mV)/2.5V (100mV) power supply for I/Os and control signals on each port Available in 208-pin Plastic Quad Flatpack, 208-ball fine pitch Ball Grid Array and 256-ball Ball Grid Array Industrial temperature range (C40C to +85C) is available for selected speeds

全片的旗语信号港口之间无论从港口独立的多路复用总线和控制总线字节完全支持异步操作的硬件配套兼容性支持JTAG功能符合IEEE 1149.1的LVTTL兼容，（150mV的）电源为3.3V单核心的LVTTL，兼容，（150mV的）/ 2.5V的选择3.3（100mV的）电源供应为我/ O和每个端口208引脚塑料方形扁平，208球细间距球栅阵列和256球的球栅阵列控制信号工业温度范围（C40C至+85 C）是选定的速度可

Secondly, the operating principle and the mathematical model and the control method about the three-level voltage source high power factor PWM converter are analysed .The generation of the PWM trigging pulse control signal are introduced emphatically. On the basis of this, the hardware experimentation circuits are built with DSP and CPLD, and the trigging pulse signal is generated exactly. The feasibility of the circuit is verified by the experiment result.

其次，分析了三相电压型变流器的原理、模型、控制方法并着重研究其PWM 触发脉冲控制信号发生技术，并以DSP、CPLD 等芯片搭接了硬件试验电路，产生了正确地触发脉冲信号，试验结果证明了设计的合理性。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。