Digital phase lock loop is a key part of the digital demodulator.
数字锁相环是数字解调器的关键部件。
To avoid these disadvantages, an all-digital demodulator scheme is given in this paper.
针对上述缺点本文给出一种全数字解调器方案。
The design of digital demodulator plays an important role in digital receiver development.
可以说接收机数字化的主要内容就是设计数字化解调器。
Based on the study of digital synchronization techniques, this paper proposes a new all-digital demodulator for OQPSK.
本文通过对数字同步技术的研究，提出了一种新的OQPS K全数字解调器。
In digital communication system, the method of all-digital demodulator has been extensive applied to high rate digital receiver.
在数字通信系统中，全数字解调方法已经在高速的数字接收机中得到广泛应用。
This paper designed a full digital modulator and a full digital demodulator for the millimeter wave communication machine based on the soft radio theory.
本文利用软件无线电的思想为毫米波保密通信机设计了一个全数字的调制解调器。
Based on the simulation and analysis of classical algorithms, a carrier recovery algorithm which is combination of swept and DD algorithm is adopted in all-digital demodulator.
在对经典载波恢复算法仿真和分析的基础上，采用扫频和DD算法相结合作为全数字解调的载波恢复算法。
Finally, the performances of this digital demodulator are tested through the simulation of BER and the system joint lock-time, and a carrier recovery module is implemented in FPGA.
最后，通过对误码性能和系统联合锁定时间进行仿真，验证了数字解调器性能，并在FPGA中实现了载波恢复模块。
Then, based on the overall structure of the IF all-digital demodulator for FY-2 meteorological satellite, the digital down conversion and the timing synchronization are deeply researched.
随后在风云二号气象卫星中频全数字解调器总体结构方案的基础上，对数字下变频和定时同步部分进行了重点研究。
Demodulator is a key part in a receiver and the difference between an analog receiver and a digital receiver begins from it.
解调器是接收机中的关键部件，数字化接收机与模拟接收机的区别始于解调器。
This paper analyses the anti-noise performance of digital satellite TV receiver system, and discuses the anti-noise capability of R-S decoder, of convolutional decoder and of QPSK demodulator.
分析卫星数字电视接收系统的性能以及卫星数字电视接收机中R-S解码器、卷积解码器和QPSK解调器等部分电路对系统抗噪声性能的贡献。
Two kinds of PAD, based on analog and digital I/Q demodulator respectively, have been constructed and tested in both laboratory and the klystron gallery of BEPCII linac.
基于模拟和数字I／Q解调器，构建了两种PAD，并分别在实验室和速调管长廊进行了测试。
The first demodulator receives the first digital signal and outputs an MPEG signal via the digital signal pins.
第一解调器接收数字信号，并首次通过数字输出信号引脚的MPEG信号。
Design, construction and verification test is made to complete a multi-frequency excitation source based on FPGA and to complete a digital quadrature demodulator.
完成了基于FPGA平台的多频恒流激励源和数字化正交序列解调模块的设计、构建与实验验证。
A blind adaptive equalizer for digital QAM demodulator ASIC chip is designed.
设计了一种用于数字QAM解调芯片中的自适应盲均衡器。
This initial demodulator incorporates a digital mixer, DDFS and low-pass filter.
该解调器由数字混频器、数字频率合成器(DDFS)和低通滤波器构成。
This paper presents a Nyquist filter to perform symbol synchronization and matched filtering in a QAM demodulator for digital television.
本文设计了一种用于完成QAM数字电视解调芯片中符号及匹配成形功能的奈奎斯特滤波器。
Digital and analog systems need an interpreter in order to understand each other. and that's where the modem (short for Modulator DEModulator) comes.
数字系统与模拟系统之间需要有一个转换器，以便使两种系统相互理解。调制解调器的作用就在于此。
The receiver unit mainly consisted of the digital down converter, matched filter, integration and dump module, power detector, symbol tracking processor, differential demodulator and so on.
接收部分主要是扩频系统的数字下变频、积分清洗、匹配滤波器解扩、功率检测、符号跟踪、差分译码等技术。
Demodulator separately extracted falling and rising edge in input signal, and then synthesized digital signal to a digital circuit, achieve high-speed demodulation circuit.
完成了可以将凹槽的下降边缘和上升边缘分开提取出来运放跟随器解调电路，实现电路的高速解调。
Demodulator separately extracted falling and rising edge in input signal, and then synthesized digital signal to a digital circuit, achieve high-speed demodulation circuit.
完成了可以将凹槽的下降边缘和上升边缘分开提取出来运放跟随器解调电路，实现电路的高速解调。
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