分析阐述了差分调制与解调的特点。
This paper also touches upon the features of differential modulation and demodulation.
本文提出了一种新的差分调制方式，我们称之为相干幅度差分相移键控(CADPSK)。
The thesis presents a new differential modulation, Coherent Amplitude and differential Phase Shift Key (CADPSK).
实现不同帧之间的比特交织等。COFDM调制部分包括块划分及COFDM符号形成、DQPSK符号映射、频率交织、差分调制及COFDM调制等环节。
The COFDM modulation part is made up of blocks partition, COFDM symbol forming, DQPSK symbol mapping, frequency interleaving, difference modulation and COFDM modulation and so on.
小灵通使用TDMA(分时多址)/(时分复用)作为其接入无线网络的方法，且声讯编码以自适应差分脉冲编码调制方式调制，速率为每秒32千比特。
PHS uses TDMA/TDD for its radio channel access method, and 32 kbit/s ADPCM for its voice codec.
由于其调制信号的特殊性，很适合差分曼彻斯特编码。
Differential Manchester code is fit for TWACS according to the speciality of modulation signal.
利用基扩展模型，针对平坦快衰落信道提出了差分空时调制方法。
Relying on basis expansion model, this paper presents a differential space-time modulation method for flat rapidly fading channels.
介绍了一种新型的空间调制光谱技术—差分反射(DR)光谱技术。
An improved spatial modulation technique called Differential Reflectance (DR) spectroscopy has been described.
差分吸收检测和波长调制谐波检测是气体光吸收检测的两种基本方法。
Difference absorption measurement and wavelength modulation harmonic measurement are two fundamental approaches for gas light absorption detection.
混沌开关键控(COOK)和差分混沌键控(DCSK)是两种基本的调制方案。
Chaotic on-off keying (COOK) and differential chaos-shift keying (DCSK) are two simple modulation schemes.
传统的差分空时分组编码(DSTBC)在QPSK调制时存在着信号星座扩展。
The traditional differential space-time block code (DSTBC) suffers from the signal constellation expansion for QPSK modulation.
针对矩阵变换器调制方式的特点，提出了基于输出电压误差函数分析的矩阵变换器离散调制技术，推导了基于时间离散和差分原理的电路方程。
Based on the output-voltage error function, a novel time-discrete modulation technique is proposed for matrix converters (MCs) and time-discrete difference equations of a MC circuit are derived.
该文针对发射天线数为偶数的系统，提出了一种降低接收机计算复杂度的差分空时调制方案。
To reduce receiver complexity, a new DUSTM scheme is proposed for systems where the number of transmit antennas is even.
利用差分平衡结构的S2I存储单元设计了平衡s2i积分器，并在此基础上设计出一种平衡差分结构的二阶调制器。
A balanced S2I integrator is designed in favor of this circuit. Then, a differential balanced second-order modulator is devised based on the integrator.
提出一种新的结合多级编码和差分空时调制的联合编码调制方案。
To combine multilevel code (MLC) with differential space-time modulation (DSTM), a new scheme based on an multilevel low-density parity-check (LDPC) code with iterative decoding is proposed.
报道了在近红外波段的差分浓度调制激光光谱技术的研究工作。
The emission spectra were obtained by using the concentration modulation spectroscopic technique.
发送部分介绍了中频发送的差分编码、扩频、BPSK调制等技术；
The transmitter unit mainly consisted of differential encoding, spread spectrum and BPSK modulation and so on.
分析了强度调制和甲烷浓度差分检测原理，建立了光纤光栅式差分检测方案；
The principles of intensity modulation and difference absorption are discussed. The scheme of fiber grating and difference absorption detection is designed.
基于OFDM(正交频分复用)系统，提出了一种新的空频时三维编码，将网格编码调制和差分空时分组码进行组合链接设计。
Based on OFDM system, a novel space-frequency-time code which combined trellis-coded modulation with differential space-time block code was proposed.
差分输入由模拟调制器以最高40MSPS的采样速率进行采样。
The differential input is sampled at up to 40 MSPS by an analog modulator.
设计实现了基于差分后谐波检测的微弱信号处理电路、前置放大电路、差分电路、调制电路和光源温度控制电路及电流驱动电路等。
The circuit of Photoelectricity Weak Signal Detection, preamplifier circuit, difference circuit, modulation circuit, optical source thermal control and current drive circuit etc. are designed.
提出基于光弹调制器式反射差分技术的多通道并行测量新方案，完成一台双通道并行测量样机。
A new multi-wavelength parallel measurement method is proposed and a two-wavelength spectrometer for PEM-based-RDS is developed.
提出基于光弹调制器式反射差分技术的多通道并行测量新方案，完成一台双通道并行测量样机。
A new multi-wavelength parallel measurement method is proposed and a two-wavelength spectrometer for PEM-based-RDS is developed.
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