1) frequency shifted audio tone
移频信号音
2) audio signal
音频信号
1.
Design of an audio signal collector based on DSP with high fidelity;
基于DSP的高保真音频信号采集器设计
2.
The Development of a Soft Digital Spectral Analyzer for Audio Signals;
音频信号软件频谱分析仪设计
3.
Blind separation of mixed audio signal based on FastICA
基于FastICA的混合音频信号盲分离
3) Audio frequency signal
音频信号
1.
In the emitting part of the system, the audio frequency signal is modulated through frequency modulation while the receiving part restores the primitive audio frequency signal.
系统中的发射机单元采用调频方式实现音频信号的调制而接收机单元对调频信号进行解调 ,恢复出原始的音频信
4) acoustic signal
音频信号
1.
Signal Analysis Based on Cantor Set and the Application of Cantor Set in Acoustic Signal of Vehicle Model Recognize;
信号的康托尔分析及其在音频信号车型识别中的应用
2.
Compared with vibration signals,acoustic signals can be collected with non-contact sensors,so as to be convenient and cheap.
轴承音频信号包含了大量的运行状态信息,与振动信号相比,音频信号的采集是非接触式的,具有使用方便和成本低廉等优势。
3.
On the basis of combining theory with practice, bearing fault diagnosis by acoustic signals based on Hidden Markov Model (HMM) is researched systematically in this paper.
(1)轴承音频信号包含其运行状态的重要信息，通过分析这些信息就能对轴承进行有效的故障诊断，而且音频信号能够非接触式采集，具有使用方便、成本低廉等优点。
5) audio signals
音频信号
1.
This paper solves the problem by adaptively replacing the redundant audio signals with the chaotic synchronization signals,and presents a chaotic encryption scheme for digital audio streams.
提出一种数字音频的混沌加密方案,通过把音频信号的冗余信息自适应地替换成混沌同步信息,从而有效地解决了混沌同步信号的传输问题,并在解密时获得容许误差范围内的混沌同步,进而恢复出密钥序列进行解密,最后将丢失的冗余音频恢复得到最终解密音频。
2.
This paper puts forward a new audio information hiding algorithm,namely partial phase division correcting method based on hearing perception experiments of wideband audio signals,which is for partial phase distortion conditions under no hearing perception difference.
针对听觉感知无差异时的局部相位失真条件,在宽带音频信号实验的基础上,提出一种利用局部相位分区实现信息隐藏的新算法。
3.
This article briefly describes the characteristics of the series of chips and how it works and then puts forward by PC audio output interface and RS232 serial interface,combined with a single-chip ISD4000 series recording a voice chip bulk after all kinds of audio signals,and allows any section of the audio output.
文章介绍了该系列芯片的特点和工作原理,然后提出通过PC机的音频输出接口和RS232串行接口,结合单片机实现ISD4000系列语音芯片批量录制各种经过处理后的音频信号,并可实现对任意段音频输出的方法。
6) Frequency shift signal
移频信号
1.
The realization of frequency shift signal based on railway circuit;
轨道电路移频信号解调实现
2.
Digital realization of frequency shift signal with continuous phase;
相位连续移频信号的数字化实现
3.
The investigation of technical solution based orthogonal frequency shift signal;
基于正交性移频信号技术方案的研究
补充资料：多普勒频移
多普勒频移
物理学术语。又称“多普勒频率”。由多普勒效应引起发射频率与运动目标反射波或散射波信号频率之间的频差。反射体引起的多普勒频移(fd)与发射频率(fs)的关系式为fd=(2Vcosθ)·fs，C为声速，V为反射体的运动速度，θ为反射体运动方向与声束指向之间的夹角。取超声诊断中的典型数据可算得血流。胎心检测中的多普勒频移(fd)均在声频范围之内，因此这类诊断仪器均可采用扬声器来监听。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条