modulation的例句大全

Color Image Blind Watermark Algorithm Based on Spread Spectrum Modulation and Visual Masking

基于扩频调制和视觉掩蔽的彩色图像盲水印算法

Thermostatic bimetal strips double-sideband suppressed-carrier modulation

GB/T4461-1992热双金属带材抑制载波的双边带调制

The intelligence signal transmitted in the digital communication is the coded element sequence, using this sequence to change some or several parameters of the carrier to implement the digit carrier modulation.

数字通信中发送的信息是经过编码的码元序列，再用该序列去改变载波的某一个或多个参数，实现数字载波调制。

An adaptive orthogonal frequency division multiplexing ( OFDM) scheme is described with a simple space time coded transmit diversity for frequency selected fading channel by combining adaptive modulation with spacial diversity.

将自适应调制技术和空间分集技术有机地结合起来，提出了一种与简单空时编码发射机分集相结合的恒定比特率自适应正交频分复用（OFDM）方案。

Differential detected turbo product coded modulation and diversity receptions of the TPC-MDPSK in correlated Rayleigh-fading channels are studied.

研究了差分检测Turbo乘积编码调制和相关Rayleigh衰落信道中Turbo乘积编码MDPSK信号的分集接收的实现方法。

Laser carving technology has the advantages of higher resolution, focusing precision and digital modulation. Direct laser micro-structure technology has replaced the traditional intaglio plate technology. It has been widely used in laser engraving gravure plate and laser plate processing.

激光在这一领域的应用有如下特点：加工效率高、聚焦精确和具备数字调制的优势，因此直接激光微构造技术已经取代了传统凹版制版技术。

The Design of High Stability Keying Frequency Modulation Oscillator

高稳定度键控调频信号发生器设计

In modern Sonar equipment the several signal operation modes are usually required, for instance, the keying single frequency signal operation mode, the keying frequency modulation signal operation mode and etc.

在现代声纳中常要求在一部声纳中同时具有几种信号工作方式的功能，例如单频脉冲信号工作方式、键控式调频信号工作方式等等。

Punctured convolutional coding with an 8, 16 and 32 differential amplitude and phase shift keying ( DAPSK) modulation is considered.

研究带删除卷积码的8、16、32差分幅/相移键控（DAPSK）调制。

Double Baseband Processing Offset Quadrature Phase Shift Keying Modulation Technique

两次基带处理&偏移正交相移键控调制技术

The design and realization of minimum frequency shift keying modulation system based on FPGA

基于FPGA的最小移频键控调制器的设计与实现

A Study of TDM With Timed Pulse Interval Modulation

定时脉冲间隔调制时分多路复用的研究

Abstract: The emissive frequency of the general frequency modulation broadcast transmitter is fixed.

一般的调频广播发射机，发射频率是固定的。

Thus , electro-optical modulation is one of the effective technologies to improve the ali.

结果表明, 使用电光调制技术可有效提高投影光刻的对准精度.

The error correcting and decoding, interleave and and DMT modulation and demodulation are analyzed in detail.

分析了信道编译码方法 、 交织与解交织及DMT调制 与解调等关键技术.

The zero-cross modulation technology uses existing power distribution network as transmision carrier.

过零调制技术完全利用现有电力网络为传输载体,无需额外增加系统设备,成本低廉.

Multipath channel simulation of OFDM systems, including encoding, mapping, interleaving, modulation.

多径信道下的OFDM仿真系统, 包括编码, 映射, 交织, 调制.

Time modulation ultra-wide band technology and its application in VOD

时间调制-超宽带宽技术及在VOD中的应用

Based on the discussion on LFM signal, this paper studies several jamming methods and presents the simulation experiments, including: directed noise amplify jamming, phase modulation jamming, time-delayed jamming, frequency-shift jamming, etc.

在分析线性调频（LFM）信号的基础上，研究了多种基于DRFM的雷达干扰技术，仿真验证了干扰效果，包括：射频噪声干扰、噪声调相干扰、延时干扰和移频干扰等。

But the modulation mechanisms are strongly dependent on the doping element and metal.

但是，调控机理很强地依赖于掺杂元素及金属的类型。