The experiment results show that there are some problems to make return-to-zero optical pulse by cross-gain modulation in SOA.
对实验结果进行了分析，实验表明采用半导体光放大器的交叉增益调制效应对归零码进行波长变换时存在着一些问题。
In the magnetic dipole field the differential cross section generally has non-vanishing values in both directions, but when the propagating direction of photon flux is parallel to the magnetic dipole vector, the differential cross section is equal to zero.
在电偶极场中，沿光子传播方向及其反方向上的非极化微分截面为零；而在磁偶极场中，在上述方向上通常则具有非零的微分截面，但当光子传播方向平行于磁场偶极距矢量时，该微分截面为零。
In the cross-docking system, stocks are constantly delivered by suppliers to Wal-Mart`s warehouses everywhere; after selection and packing, they will be sent to various retail outlets, and zero inventories are normally the case, because the stocks are always on the move, little is detained in the warehouse.
在跨码头系统中，货物被源源不断地从供应者运送到沃尔－马特设在各地的货仓，在那里经过挑选、再包装，然后被分送到各个零售网点，其间往往不形成存货。货物很少在仓库里滞留，总是在流动之中。
When making the capacitor into the power system at end voltage zero- cross of contactor, it can limit surge current within 5 times of the rate current of capacitor.
在现有普通交流接触器的基础上，对其控制回路进行特殊改造，在接触器触头端电压过零点附近将电容器投入，能有效地将涌流控制在电容器额定电流的5倍以内。
Company is mainly engaged in development, manufacturing, sales instruments and meters, electric wire and cable, cable tray, fiber optic cable, proprietary Chinese medicines and medical equipment and other products, after years of product structure adjustment, and has formed instrumentation including thermal resistance, thermocouple, bimetal thermometer, temperature transmitter, digital meters, pressure gauges, pressure transmitter, level gauge, level transmitter, and temperature, pressure, flow, level series fieldbus instrumentation products; wires and cables including control cables, computer cables, cross-linked power cable, ACSR, fire-retardant cables, fire-resistant cables, marine cables, compensation cables, silicon rubber cables, high temperature cables, the security cable, low smoke and low halogen low smoke zero halogen cables, overhead power lines and other wires, such as the installation of cloth series wire and cable products; communications center beam tube fiber optic cable, including fiber optic cable, twisted layer type optical cable, ribbon cable, ADSS fiber optic cable and wiring products; Chinese medicine including granules, granules, capsules and medical Instruments such as the pattern of diversification.
公司主要从事开发、制造、销售仪器仪表、电线电缆、电缆桥架、光纤光缆、中成药和医疗器械等产品，经过多年的产品结构调整，已形成仪表包括热电阻、热电偶、双金属温度计、温度变送器、数显仪表、压力表、压力变送器、液位计、液位变送器和温度、压力、流量、液位现场总线等系列仪器仪表产品；电线电缆包括控制电缆、计算机电缆、交联电力电缆、钢芯铝绞线、阻燃电缆、耐火电缆、船用电缆、补偿电缆、硅橡胶电缆、高温电缆、本安电缆、低烟低卤及低烟无卤电缆、架空电缆和其它各种安装布电线等系列电线电缆产品；通信光缆包括中心束管光缆、层绞式光缆、带状光缆、ADSS光缆及其配线系列产品；医药包括冲剂、颗粒、胶囊和医疗器械等多元化经营格局。
Zero-cross feature of MPSK signalswavelet transfom When MPSK signals are analyzed with wavelet transform, a kind of novel zero-cross phenomenon is found and illustrated in graphics.
对ASK、FSK和PSK信号的类间分类(inter-class)和类内分类(intra-class)进行了新的探讨。(2)MPSK信号小波变换的过零特征。MPSK信号的特征提取和分类一直是通信领域关注的焦点也是一个难点。
The paper discusses the principle of zero-phase wavelet extracted from Ground Penetrating Radar record at the base of coefficient of reflection being white noise and used to remove the random noise in the GPR signal with cross correlation filter.
该文简述了在反射系数为白噪声条件下探地雷达记录道中零相位子波的提取，并用提取的子波对探地雷达信号进行互相关滤波的方法原理及编写的相应的程序。
I plant strong technical force, advanced production equipment, detection means perfect, the main products include: power cables, fire-retardant control cables, low smoke zero halogen cables, the security cable, instrument signal cables, compensation cables, high temperature fire cables, silicone rubber cables, cross-linked cables, steel cables splash, a variety of thermal instrumentation, digital meters, instrument control valves, transmitters, cable tray, etc., and some excellentProducts.
我厂技术力量雄厚，生产设备先进，检测手段完善，主要产品有：电力电缆、阻燃控制电缆、低烟无卤电缆、本安电缆、仪表信号电缆、补偿电缆、耐高温防火电缆、硅橡胶电缆、交联电缆、钢厂防溅电缆，各种规格的热工仪表、数显仪表、仪表管阀件、变送器、电缆桥架等，部分产品获省优。
Best and most secure trend confirmation is a cross of the fast Trix on the zero level.
最好的趋势确认是快速Trix指标穿越零轴。
The use of cross-contact type double breakpoint, accessories and modular design of zero arcing.
该接触器采用横动式双断点、附件模块化及零飞弧设计。
The computer speech analysis techniques adopted in this system include short-time power and short-time average zero-cross rate test, cepstrum analysis and linear prediction coding, which are used to detect the start-end points of speech and to get the characteristic parameters of the speaker.
该系统用汉语的6个单韵母作为录入语音，使用了包括短时平均幅度、短时平均过零率、倒频域分析技术和线性预测分析技术等来完成语音的端点检测和语音个性化特征参数的提取。
The six Chinese single vowels are selected as the test elements of our models. The computer speech analysis techniques adopted in this system include short-time power and short-time average zero-cross rate test, cepstrum analysis and linear prediction coding, which are used to detect the start-end points of speech and to get the characteristic parameters of the speaker.
该系统用汉语的6个单韵母作为录入语音，使用了包括短时平均幅度、短时平均过零率、倒频域分析技术和线性预测分析技术等来完成语音的端点检测和语音个性化特征参数的提取。
Furthermore, the original linear switching circuit is carried in the final stage, and the occurrence of AB class amplifier of zero cross distortion is suppressed.
此外，原来的线性开关电路进行了最后阶段，发生的公司级放大器的零交叉失真抑制。
Electronic Packing Machine, used imported high-precision sensor, high intelligent weighing control instrumentation, measurement of high precision and stable performance Three sizes for the information gap automatically correct zero automatic tracking cross detection and suppression, and the excessive amount owed to alarm.
采用进口高精度传感器、高智能化称重控制器，计量精度高、性能稳定。◆大、中、小三级加料，落料差自动修正、零点自动跟踪、过冲检测与抑制，过量与欠量报警。◆模拟状态下的强制执行功能，真正实现故障自诊断，方便维护与检修。
A full bridge high voltage pulsedarc stabilizing circuit which was powered by single power source is designed to avoid ofextinguishing of cross zero welding arc. This circuit can maintain the stable of arc di-directionallywhen small background current cross zero, ensure the stable burning of welding arc when weldingcurrent cross zero.
针对铝合金VP PMIG焊接电流过零后存在电弧再引燃问题，采用单电源供电方式，设计了一种全桥式高压脉冲稳弧电路，可实现小基值电流过零时的双向稳弧，保证了焊接电流过零时电弧燃烧的稳定性。
In his works, Debussy for stringed instrument tone, he not only using multiple division method will cross the stringed instrument zero, also specially added with weak sound, music in extremely weak intensity seems dark and mysterious under the sea, the dark before dawn, hazy, strange, the terror of the atmosphere.
在作品中，德彪西对于弦乐器格外关照，他不仅采用多重分部的方法将弦乐器划整为零，还特意加用弱音器，使音乐在极弱的力度下显得异常暗淡、神秘，表现了黎明前海的阴暗、朦胧、怪异、恐怖的气氛。
And the cross correlation function is approximately zero, which makes them suppress the disturbances due to the other users. After describing some basic knowledge of chaotic theory in chapter 2, we interview and classify the applications of chaos in communications including chaos secure communication, chaotic spreading codes for multi-user access in spreading spectrum system and chaotic modulation and demodulation in chapter 3. FM-DCSK system with non-coherent demodulation offers the best performance in chaotic modulation schemes.
在混沌调制方案中，FM-DCSK调制是一种极具竞争力的混沌调制方式，它克服了CSK、COOK、DCSK解调中存在的估计问题的缺点，在无线信道的传输过程中，可以很好的抑制噪声干扰与多径衰落，并且能获得非常优越的解调性能，加上混沌信号本身优越的保密性能，该调制方式在未来的无线通信领域存在着巨大的潜在优势。
Datacolor company's main production for electricity, chemicals, petroleum, metallurgy, shipbuilding, railways, nuclear power, military and other basic industrial sector control system used special cables, including fire-resistant fire-retardant series, cross-linked column, high temperature series resistance, low temperature series, radiation-resistant series, waterproof series, Low Smoke low halogen series, low smoke zero halogen series more than a dozen major categories, such as nuclear power stations with cables, military cables, towing cables, specifically to replace imported cables, waterproof underwater cables, electronic computer shielded cable, control cables, low smoke zero halogen cable category, compensation wire, cable, high-temperature fire cable, high-frequency heating and hot with cable, RF cable, high flexible cables, the security cable, instrument signal cables, marine cables, Oilfield cables, signal cables, communication cables, sensor cables, control cables, power cables, thermocouple, thermal resistance and so on.
德塔公司主营生产用于电力、化工、石油、冶金、船舶、铁路、核电、军工等基础工业部门控制系统中所采用的特种电缆，包括耐火阻燃系列、交联系列、耐高温系列、耐低温系列、耐辐射系列、防水系列、低烟低卤系列、低烟无卤系列等十几个大类的核电站用电缆、军工电缆、拖曳电缆、专门替代进口电缆、水下防水电缆、电子计算机屏蔽电缆、控制电缆、低烟无卤类电缆、补偿导线、电缆、高温防火电缆、高频加热和伴热电缆、射频电缆、高柔性电缆、本安电缆、仪表信号电缆、船用电缆、油田电缆、信号电缆、通讯电缆、传感器电缆、程控电缆、电力电缆、热电偶、热电阻等。
This system uses back EMF cross-zero sensing as the method to detect the position of rotor and the speed of DC motor.
本文介绍了一种以凌阳75系列单片机为核心的无位置传感器无刷直流电机的控制方案；系统利用了反电动势法检测转子位置和转速信号。
The require of address code in project is that the sequence has acuity auto-correlation and the cross-correlation is near to zero.
由于工程上对地址码的要求是必须具有尖锐的自相关函数，而互相关函数接近于零。