Relationship between main digital techniques including sampling frequency,quantization precision,system synchronization,etc.
由数字技术的基本知识入手,简要分析了取样频率、量化精度、系统同步等主要数字技术与频率响应、信噪比、动态范围、失真度等主要模拟音频指标的关系,并结合电视伴音的制作、存储、播出等环节,提出了提高数字电视伴音质量的方法。
Then starting from the conditions of interpolation converges limN→∞εN=0, we get the requirements of sampling rate to guarantee the compression effect of nonuniform sampling DCT.
然后从插值聚合的角度(limN→∞εn=0)出发,得出了为保证非均匀取样的DCT变换具有良好的压缩效果,非均匀取样的DCT变换的平均取样频率所应满足的要求。
If the sampling frequency is less than this, we can expect a serious distortion of output frequency which is generally referred to as aliasing.
如果取样频率小于此数,那么输出频率就要产生严重畸变,通常假频指的就是这种情况。
A false signal in telecommunication links from beats between signal frequency and sampling frequency.
假信号信号频率和取样频率之间的拍子在无线电通信线路产生的假信号
In pulse code modulation, a spurious signal formed from beats between the signal frequency and the sample frequency.
在脉冲编码调制中,信号频率和取样频率之间的差拍所引起的伪信号。
The data processing system includes a data receiving means for receiving a plurality of input data sampled at a first frequency.
此资料处理系统包含一个资料接受装置,用来接受以第一个取样频率所取样出的一组资料。
There is a penalty to be paid for the lower rate: a narrower band of frequencies will be recorded.
低取样率是有代价的:被记录的频率波段会很窄。
"The sampling of PCM is to make samples of voice with the frequency of 8,000 times per second."
PCM的抽样就是用每秒8,000次的频率的声音进行取样。
How about their frequencies?
微波的频率怎么样?
Digital audio aliasing is introduced when one attempts to record frequencies that exceed half the sampling rate.
在录音频率超过抽样频率的一半时,会造成数字音频混叠失真。
Research on resonant frequency measurement in SAW strain sensing
SAW应变测量中谐振频率提取技术研究
We use the term bandwidth to represent such a frequency range.
我们用频带宽度这个词来代表这样的频率范围。
Research and Realization of a Method to Measure Frequency for High Frequency Signal Dependent on Low Sample Rate
低采样率下高频信号的测频方法的研究与实现
Choice of Signal IF and Sampling Frequency in Software Radio
软件无线电中信号中频与采样频率选择
Design of an 8-Channel Audio Sampling Rate Converter and Its ASIC Implementation
8通道音频采样频率转换器设计与ASIC实现
Study on Frequency Conversion Problem in Storm Sampling;
对暴雨选样间的频率转换问题的论证
A Method to Speed up Sampling Frequeny of AC6611 Multifunction Card
提高AC6611多功能卡采样频率的一种方法
Experimental Study on Induced Polarization Potential of Rock Frequency Domain
岩样频率域激发极化电位的实验研究
A TRANSISTOR SAMPLING OSCILLOSCOPE WITH A BANDWIDTH GREATER THAN 1000 Me
频宽1000兆赫的晶体管取样示波器
Development of broadband sampling-mixer for 0.03GHz~3GHz
0.03GHz~3GHz宽带取样混频器的研制