In this transition step, the charge carrier transport between the clusters is dominated by the VRH relation because of the random distribution of the cluster spin in the sample. Below T〓, corresponding to the long-range FM ordering step, the moments of the clusters are aligned in FM order and the carrier transport shows completely a metallic behavior in the sample.
热电势曲线显示的IM相变与团簇内部的铁磁有序化相一致，这说明团簇内部的铁磁有序化使得极化子推局域而形成巡游电子，在这一级相变中，由于团簇自旋的无序排列，团簇之间的载流子输运属于可变程跃迁机制。
Feature Highlights 397-Dual output configuration with independent waveform control 397-Tight phase offset control between channels (1 point resolution) 14-bit vertical resolution Nearly 19-bit offset resolution 396-1 Meg memory depth 397-4 Meg memory depth for each channel Ultra fast waveform downloads using DMA 125 MS/s sample clock frequency 396-100 MHz REAR-PANEL sinewave output 397-125 MHz REAR-PANEL sinewave output 1 ppm clock stability Extremely low phase noise carrier External amplitude modulation Frequency agility: FSK, ramped FSK, sweep, FM Trigger start phase control and breakpoints Built-in standard waveforms 396-Sequence generator 397-Separate sequence generators for each channel Multiple instrument synchronization with tight phase control 396-GPIB and RS232 Interfaces 397-GPIB, USB, and Ethernet Interfaces ArbExplorer Feature Highlights 396-Three powerful tools in one software package: complete Instrument control panel, Waveform composer and FM signal composer 397-Four powerful tools in one software package: complete Instrument control panel, Waveform, pulse, and FM signal composer 397-Detailed virtual front panels control all of the Instrument`s functions and modes Wave composer generates, edits and downloads complex waveforms FM wave composer generates and downloads complex modulating signals 397-Easy, onscreen generation of complex pulses using the pulse composer 396-Automatic detection of active instruments Equation editor generates waveforms from equations SCPI command and response editor simulates ATE operation Translates waveform coordinates from ASCII and formats Simplifies generation of complex sequences Features, Functions, and Options The following is a general description of the features, functions, and options available with the Instrument.
特点聚焦 397 双重输出排列以独立信号波形控制 397 紧的阶段垂距控制在渠道(1 个点决议之间) 14 位垂直分辨率近19 位垂距决议 396-1 兆欧记忆深度 397-4 兆欧记忆深度为各种渠道超快速的信号波形下载使用DMA 125 女士s 样品钟频 396-100 兆赫REAR-PANEL sinewave 产品 397-125 兆赫REAR-PANEL sinewave 产品 1 ppm 时钟稳定极端低阶段噪声载体外在调幅频率敏捷性：FSK，ramped FSK，打扫，FM 触发器起动阶段控制和转效点固定标准信号波形 396 序列发电器 397 分离序列发电器为各种渠道多仪器同步以紧的阶段控制 396-GPIB 和RS232 接口 397-GPIB，USB，并且以太网接口 ArbExplorer 特点聚焦 396-Three 强有力的工具在一个软件包：完成仪器控制板，信号波形作曲家和FM 信号作曲家 397-Four 强有力的工具在一个软件包：完成仪器控制板，信号波形，脉冲，并且FM 信号作曲家 397 详细的真正面板控制所有Instrument。。s 作用和方式波浪作曲家引起，编辑和下载复杂信号波形 FM 波浪作曲家引起和下载复杂调整的信号 397 容易，onscreen 复杂脉冲的世代使用脉冲作曲家活跃仪器的396 自动侦查等式编辑引起信号波形从等式 SCPI 命令和反应编辑模仿吃了操作翻译信号波形座标从ASCII 和格式简化复杂序列的世代特点，作用，并且选择下列是特点的概述，作用，并且选择可利用与仪器。
This invention provides a FM emitter including an audio signal input end and a RF signal input end, a signal input processor, a digital signal process unit used in carrying out audio code and frequency modulation to signals output by the signal input processor, a signal output processor used in carrying out filter and D/A conversion to signals output by the digital signal process unit, a FM signal process part used in carrying out up frequency conversion and D/A conversion and emitting them to signals output by the unit and a frequency integrating module providing stable carrier signals, which not only simplifies design requirement to VCO and PLL of synthesizers, but also can integrate it in a chip by putting the frequency modulation part on a digital baseband.
本发明提供一种调频发射器，包括音频信号输入端和射频信号输出端，信号输入处理器，数字信号处理单元，用于对所述信号输入处理器输出的信号进行音频编码和频率调制；信号输出处理器，用于对所述数字信号处理单元输出的信号进行滤波和数模转换；FM信号处理部分，用于对所述信号输出处理器输出的信号进行上变频和功率放大，并发射出去；频率综合模块，用于提供稳定的载波信号。本发明通过将频率调制部分放在了数字基带上，而不是像以前一样直接调制高频，不但这样简化了压控振荡器和合成器锁相环的设计要求，而且使之可以集成到芯片里面。此外，由于采用了数字立体声编码和数字频率调制，使得芯片的抗干扰和音质有了大幅度的提高。
The angle modulation is a way in which modulating signals are used to control the angles of carrier signals (frequency or phase). It can be divided into frequency modulation (FM) and phase modulation (P M).
角度调制是用调制信号去控制载波信号角度（频率或相位）变化的一种信号变换方式，可以分为频率调制（FM）和相位调制（PM）。
A New Technique to Remove Doppler Frequency and Carrier Frequency Bias in PCM/FM Telemetry System
PCM/FM遥测系统中用于去除多谱勒频率和载波频偏的新方法
Exciter is the core component of FM broadcast transmitter. It is used to make the audio signal modulate the carrier radio.
激励器（exciter）是调频广播发射机的核心部件，它用来将音频信号对调频载波进行调制。
Research on mechanism of near carrier frequency FM noise for CW guided air-to-air missile weapon system
连续波雷达制导空空导弹武器系统近载频噪声作用机理研究
FM sound sync-broadcasting has overlapped service zone, the same carrier frequency and the source of the program, which can broadcast in-phase at the same time.
调频同步广播系统是具有重叠服务区，使用同一载频和同一节目源，同时同相位广播的调频发射技术。
Excellence of FM products and become a new means of operating industrial site-the best carrier of laser processing.
精益求精的FM系列产品，成为工业现场的作业新手段&激光加工的最好载体。
Frequency modulation (FM): the form of modulation in which the frequency of the carrier is varied in accordance with the instantaneous value of the modulating signal.
混频滤波式频率合成器频率调制：载波的频率依照调校讯号的瞬时值而改变的一种调制。
Coupling circuit design of the basic requirements include: strong will power and weak electricity segregation; FM signals; through useful carrier outside interference and to filter out noise; To two-way transmission, which can be made collect.
3设计耦合电路，载波调频信号从电力线上可以通过耦合电路进入到解调电路，耦合电路是一个带通滤波电路，是实现将信号频带外的其他频率滤除的功能电路耦合电路设计的基本要求包括：将强电与弱电隔离；通过有用的载波调频信号；滤除带外干扰和噪声；能够双向传输，即能收能发
Compare OFDM to FM (modulation mode of UM2000) without changing the bandwidth, symbol period and carrier frequency, and make emulational analysis of the transmitted information by OFDM modulation.
在不改变带宽、符号周期和载频的情况下，将OFDM与FM（UM2000系统中所采用的调试方式）进行了分析比较，并对所传信息以OFDM调制方式进行了仿真分析。
RDS FM technology is the use of multiple techniques, in the FM radio band surplus created a sub-carrier channel.
RDS技術是利用調頻多工技術，在調頻廣播的富余頻帶內增設一個副載波信道，用以傳送數据信息。