1) symbol rate
符号率
1.
Research on the symbol rate and modulation level controllable adaptive modulation system;
符号率及调制参数可控的自适应调制系统研究
2.
In the light of that the analogue and digital modulated signals have or have not symbol rate,a novel recognition algorithm is proposed,which uses nonlinear transform and wavelet transform to obtain the signal envelope and transient information,and then extract the feature from frequency domain,and to realize the classification directly without setting decision threshold.
根据模拟、数字调制信号有无符号率的特点,提出了采用非线性变换与小波变换相结合的方法,获得信号的包络与瞬变信息,然后再提取变换后的频域特征,无需设置判决门限便可直接实现这两种调制方式的分类。
3.
So we can utilize two WT to detect the boundary of digital signal, and then estimate its symbol rate.
因此利用二次小波变换,在未知信号类型的情况下,可 对数字信号进行符号率估计。
2) symbol rate
符号速率
1.
To investigate the blind estimation of the symbol rate of a long code direct sequence spread spectrum(DSSS) signal,an algorithm based on autocorrelation processing is proposed.
针对长码直接序列扩频(DSSS)信号的符号速率估计的难题,提出了基于相关处理的方法。
2.
In this paper,the Discrete Fourier Transform of PSK modulated signal instantaneous amplitude is calculated,and the corresponding frequency value of discrete spectrum line after transform is detected to estimate the symbol rate.
本文通过对PSK调制信号的瞬时幅度进行DFT运算,检测变换后离散谱线对应的频率值得到符号速率的估计。
3.
This paper considers the problem of blind symbol rate estimation of signals linearly modulated by a sequence of unknown symbols.
本文阐述了未知符号序列经线性调制后,在接收端利用循环相关理论对符号速率进行盲估计的问题。
3) symbol error rate (SER)
误符号率
1.
A closed-form expression for the exact symbol error rate (SER) of space-time block coding (STBC) is derived by means of the moment generating function (MGF) with the equivalent single-input single-output (SISO) model.
基于等效单输入单输出SISO(Single-inputSingle-output)模型,利用矩量母函数(MGF)分析法,空时分组码STBC(Space-TimeBlockCoding)的误符号率是可以得到其准确闭式表达式的。
2.
This result is then applied to study the performance of selection amplify-and-forward cooperation protocol in Nakagami fading channel and closed-form expression of the Symbol Error Rate (SER) in high SNR region is also provided.
该文根据两个统计独立非负随机变量的调和平均值的概率密度函数在零点的变化特性,分析了选择性放大传送协同协议在Nakagami衰落信道中的性能,得出了高信噪比时系统误符号率的闭合表达式。
4) symbol error rate
误符号率
1.
Symbol error rate of digital pulse interval modulation(DPIM)caused by timing error are analyzed in detail on the given demodulation model.
在给出信道模型和解调模型的基础上,详细分析了定时误差对 DPIM差错性能的影响,并推导了附加热噪声 APD 接收机下的误符号率。
2.
Symbol error rate of digital pulse interval modulation (DPIM) caused by timing error are analyzed in detail on the given demodulation model.
在给出信道模型和解调模型的基础上,详细分析了定时误差对DPIM差错性能的影响,并推导了附加热噪声APD接收机下的误符号率。
3.
The exact and approximate closed-form expressions for the average symbol error rate(SER) of coherent 3-ary orthogonal signals using multiple-input multiple-output(MIMO) maximal ratio combining(MRC) are de-rived in this paper.
该文推导了瑞利衰落信道上采用多输入多输出最大比合并天线分集、相干检测的三进制正交信号的平均误符号率性能的精确和近似闭合表达式。
5) SER
[英][siə] [美][sɪr]
误符号率
1.
Compared to PPM and PAM,OAPPM technique is of lower SER and compl.
文中分析了TH-OAPPM UWB系统的信道容量和误符号率并进行了仿真。
2.
The symbol error rate(SER) performance is expressed in numerical integration with finite limits for different signaling.
针对一般的相关检测天线选择系统,分析了Rayleigh衰落信道接收端非理想信道状态信息下发送天线选择(AS)系统的误符号率(SER)性能,给出了数值积分形式的理论表达式。
6) Ratio symbol
比率符号
补充资料：电导率(见电阻率)
电导率(见电阻率)
conductivity
d!日nd日O}已电导率(eonduetivity)见电阻率。
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