Ask modulation

Theoretical Analysis of an OCDMA System Using ASK Modulation and Coherent Detection

采用ASK调制编码及相干检测方案的OCDMA系统分析

Influence of ASK modulation depth on energy and data transmission of the passive RFID system

ASK调制度对无源RFID系统能量和数据传输的影响

Implementation of ASK Modulation and Demodulation Modules Based on VHDL

基于VHDL语言的ASK调制解调模块的实现

Optimized Design of Bandwidth of a F P Filter in ASK Modulation WDM Transmission Systems

采用ASK调制的波分复用系统中滤波器带宽的优化设计

The spectrum of FM , AM , ASK modulation is analyzed . 3 .

并分析了调频、调幅、ASK调制时的频谱曲线。

An optimized design of bandwidth of a F P filter in ASK modulation WDM transmission systems is studied in this paper .

提出了采用幅移键控（ASK）调制的波分复用（WDM）系统中光滤波器带宽的优化设计问题。

After the unequal error protection of multilevel coded modulation is discussed in detail , a non-uniform signal constellation applied to 8 ASK modulation is designed .

在详细分析了多级编码调制的不等错误保护原理的基础上，设计了一种针对8ASK调制的非均匀信号星座。

The author proposed the hardware circuit scheme and TDE ( Time Delay Estimation ) model for the system with the PRBS and ultrasonic carrier adopting ASK modulation mode .

伪随机码与超声载波采用ASK（幅移键控）调制方式，介绍了伪随机码超声扩频测距硬件方案和超声测距时延估计模型。

Finally , the antenna , ASK modulation , power supply of the tag , load impedance modulation , demodulation , power supply sensor and HF power amplifier were realized .

本文实现了天线、ASK调制、应答器的电源、负载调制、解调、电源传感器和高频功放模块。

The approach uses the parasitic inductance of the antenna to implement ASK modulation by adjusting the capacitive reactance of the matching network , which changes with the backscatter circuit .

该阻抗匹配方法利用天线的寄生电感，通过调整反向散射电路的电容来改变匹配网络的容抗，从而实现ASK调制。

A phase-locked receiver applied to receive pulsed PSK radio frequency is introduced to meet the requirement of a certain spacecraft beacons test , which is based on the characteristics of the low code rate PSK and ASK dual modulation radio frequency signal .

基于对某航天器用救援示位标的测试需要，针对示位标低码速率调相、调幅双重调制射频信号的特点，介绍了一个接收脉冲射频调相信号的接收机。

A scheme which adopts low chip-rate but no extra label length is proposed in this dissertation . The OC label is phase-shift keying ( PSK ) modulated on the amplitude-shift keying ( ASK ) modulation payload .

本文提出了一种采用低速OC标签但不增加标签开销的相移键控光码（PSK-OC）标签和幅移键控（ASK）净荷正交调制光分组格式。

Realize signal modulation and demodulation functions , including various types of modulation such as ASK ( amplitude modulation ), PSK ( phase modulation ), FSK ( FM ) .

实现信号的调制解调功能，包括各类调制如ASK（调幅），PSK（调相），FSK（调频）。

The DDS , Direct Digital Synthesizer , which is implemented by a unique FPGA IC , can provide the stable sine signal with digital AM , FM , ASK , PSK modulation .

仅用单片FPGA就实现了直接数字频率合成技术（DDS），产生稳幅正弦波，并在数字域实现了AM、FM、ASK、PSK等四类调制信号。

The paper discusses the principle and the way of SAW coders to realize ASK and PSK modulation , and introduces the applications of SAW coders in spread-spectrum communication systems and in modern electronic automatic identification systems .

本文论述了用声表面波（SAW）技术实现ASK和PSK编码调制的原理及其方法，并对SAW编码器在扩展频谱通信系统和现代电子自动识别系统中的应用作了较详细的介绍。