As an addition to the vision signal, this paper introduces a traffic sound signal based on the fuzzy technology which is designed and developed to give out speech and sound prompt according to the conditions of main road intersection, the device can automatically adjust prompt volume along with environment noise volume, thus reducing effectively the noise pollution.
设计和研制了一种基于模糊技术的交通信号声讯器, 它能够根据交通路口的通行状况发出语音和声讯提示，且能随环境噪声的强度自动调节提示音量的大小，可有效减少噪声污染。
Study on Modulation Recognition of Communication Signal Based on Phase Diagram;
基于相图的通信信号调制样式识别问题研究
The application of PWM in digital modulation and demodulation for analog communication signals in several modulation modes;
PWM在几种模拟通信信号数字调制解调中的应用
Research of Underwater Communication Signal Generator Based on DDS
基于DDS的水声通信信号发生器的研究
Implement of Signal Generator With Multi-carrier in Underwater Acoustic Communication Based on DDS
基于DDS的多载波水声通信信号发生器的实现
Underwater Communication Beacon Signal Born and Digital Filter Based on FPGA;
基于FPGA的水声通信信标信号生成及数字滤波
Development and Application of the General Purpose Underwater Signal Processing System;
通用多功能水声信号处理系统及其应用
Virtual Instrumentation Technology in Multi-Channel Data Preprocessing for Underwater Acoustic Signals;
多通道水声信号数据预处理的虚拟仪器技术
Simulation of CPLD chip in multi-channel acoustic signal data transmission
CPLD用于多通道水声信号数据传输的仿真研究
Researching on Signal Synchronization and Detection in Underwater Communication Network Based on FH-CDMA
基于FH-CDMA的水声网络通信系统中信号同步与检测研究
Realization of Real-time Signal Processing Algorithms for Pattern Time Delay Shift Coding Underwater Acoustic Communication System
基于Pattern时延差编码体制水声通信系统实时信号处理算法实现
The Research of Data Acquisition System for Acoustic Signal Based on Wireless Communication;
基于无线通信的声信号采集系统研究
Design of general underwater acoustics signal transmiter system based on virtual instrumentation technologies
基于虚拟仪器技术的通用水声信号发射系统设计
Adaptive Equalization in High Speed Underwater Acoustic Communication System;
高速水声通信系统中的信道均衡技术
Frequency Synchronization and Channel Estimation for OFDM Underwater Acoustic Communication;
OFDM水声通信中的频率同步与信道估计
Design and Simulation of Frequency-Hopping Communication System in Underwater Acoustic Fading Channels
水声信道中跳频通信系统设计与仿真
Study on channel estimation technique of OFDM underwater acoustic communication system
OFDM水声通信信道估计技术研究
Channel Estimation Algorithm in Underwater Acoustic Communication Based on DFT and OFDM
基于DFT的OFDM水声通信信道估计算法
an automatic signal (usually a sound) warning of danger.
警告危险的自动信号（通常是一种声音）。
a signal (usually a siren) that danger is over.
危险结束的信号（通常是警笛声）。
To signal or call by tinkling.
通过发出铃铛声发信号或呼叫