1) under-sampling
欠抽样
2) Owe sampling technology
欠抽样技术
3) undersampling
欠采样
1.
Uniform undersampling technique of bandpass signal and its engineering application in software digital IF receiver;
带通欠采样技术及在数字中频软件接收机中的工程应用
2.
Project of Convex Set Method for Reconstructing A Super-resolution Image from Multiframe Undersampling Images;
一种多幅欠采样图像的凸集投影超分辨率重建方法
3.
Application of bandpass undersampling principle in software radio;
带通欠采样定理在软件无线电中的应用
4) sub-sampling
欠采样
1.
Time-delay estimation for sub-sampling sinusoidal signals;
欠采样条件下的正弦信号时差估计
2.
In order to break through the limitation of Electronic analog-to-digital converter in speed and time-delay precision,a wideband digital frequency measurement method based on optical sub-sampling is proposed.
为了突破高速电模数转换器采样速率和时延控制精度对测频带宽的限制,文中提出了一种采用光脉冲欠采样的超宽带、高分辨率数字测频方法。
3.
In the algorithm for estimation of frequency of ultra-wideband LFM signal based on multi-channel and sub-sampling,even tiny error of the remainder can lead to huge error of the frequency.
针对基于多速率欠采样的超宽带LFM信号瞬时频率估计方法中,余数的很小测量误差将导致很大的测频误差问题,提出一种基于欠采样的超宽带LFM信号参数估计算法。
5) under-sampling
欠采样
1.
According to the characteristics of the wayside frequency-shift signal spectrum,and based on a great number of computer emulators and real-time experiments and on non-complete periods sampling,the feasibility of applying the under-sampling technology to the real-time FFT analytical method of tramroad FSK signal is validated.
针对轨道移频信号的频谱特点,采用欠采样技术对轨道移频信号进行非整周期的采样,经过计算机仿真实验,验证了基于非整周期采样方法对轨道移频信号进行实时傅里叶变换(FFT)分析检测的可行性,证明采样方法满足检测指标的要求。
2.
Based on the theoretic modeling and analysis of the IF GPS signals,an accurate software simulator of IF GPS signals is implemented in Matlab/Simulink,the effects of noise,under-sampling and receiver clock error are also simulated.
在对中频GPS信号理论建模与分析的基础上,采用Matlab/Simulink构建了一种精确的数字中频GPS信号软件模拟器,考虑了噪声、欠采样以及接收机时钟误差等的影响。
3.
The theoretical analysis has proved that in the condition of under-sampling, because the paired echoes will be appeared, the system’s multi-object resolution will be affected.
理论分析证明:在欠采样情况下,脉冲压缩后会出现成对回波,因而系统的多目标分辨能力受到影响;由于信号带宽的损失,脉压输出回波信号的主瓣展宽,距离分辨力下降;另外,主瓣幅度或相位还会受到调制。
6) sub-Nyquist sampling
欠采样
1.
Using Different Frequencies Method to Solve Bandpass sub-nyquist sampling;
欠采样信号多采样频率处理方法
2.
In view of the present sub-Nyquist sampling frequency estimation method,in order to overcome the existing problems such as complex arithmetic and difficult to engineer realizing,the paper puts forward a three-sample rates switching frequency estimation method based in virtual instruments.
为了克服现有的欠采样频率估计方法存在的算法复杂、工程实现困难等问题,本文提出了一种基于虚拟仪器的三采样率切换的频率估计方法。
3.
Based on an auxiliary time-delay channel and ESPRIT approach,a new algorithm for wide band frequency estimation with sub-Nyquist sampling was proposed.
基于时延和旋转不变子空间技术 (ESPRIT) ,本文提出了一种新的欠采样宽频带信号频率的高分辨估计方法 。
补充资料：验收抽样检验和监督抽样检验标准
验收抽样检验和监督抽样检验标准
standards for acceptance sampling and audit sampling inspection
扣nshou ehoUVa叩Jianyan he iiandu eh以JYang iianyanbi0Ozhun验收抽样检验和监督抽样检验标准(stands记sfor accepteLnce sampling and audit saznpling Ins侧沈-tion)有关抽样检验的中华人民共和国国家标准至1卯8年已达20个。其中验收抽样检验标准有巧个，它们是:①《逐批检查计数抽样程序及抽样表》(GBIT2828一1987)，②《周期检查计数抽样程序及抽样表》(G田T282乡一1987)，③《不合格品率的计量抽样检查程序及抽样表》(GBIT6378一1986)，④《计数序贯抽样检查程序及表》(GBZT8()5l一1987)，⑤《单水平和多水平计数连续抽样检查程序及表》(CBIT 5052一1987)，⑥《不合格率的计量标准型一次抽样检查程序及表》(GBIT 8()53一1987)，⑦《平均值的计量标准型一次抽样检验程序及抽样表》(GBIT 8()54一1卯5)，⑧《不合格品率的计数标准型一次抽样检查程序及抽样表》(GB/T13262一1991)，⑨《跳批计数抽样检查程序》(GWT13263一1卯1)，⑩《不合格品率的小批计数抽样检查程序及抽样表》(GB/T 13么抖一I卯I)，⑧《抽样检查导则》(G田T13393一1卯2)，⑩《挑选型计数抽样检查程序及抽样表》(GBIT13夕场一l卯2)，O《粒度均匀散料抽样检验通则》(G脚T 13732一l卯2)，。(孤立批计数抽样检验程序及抽样表》(GBIT 1523乡一l更抖)，0《计量截尾序贯抽样检验程序及抽样表》(GBIT l63()7一l型拓)。 监督抽样检验标准有5个，它们是:①《产品质量监督计数抽样程序及抽样表》(GBIT 14162一1卯3)，②《产品质量平均值的计量一次监督抽样检验程序及抽样表》(GB/T 14灾盯一l臾抖)，③《产品质量监督小总体计数一次抽样检验程序及抽样表)(CBITI，侣2一1卯5)，④《产品质量监督复查程序及抽样方案》(GBIT163C盼一1性尧刹玉)，⑤《产品质量监督计数一次抽样检验程序及抽样方案》(eBzTI科37一l期)。 在上述的抽样检验标准中，较有代表性的抽样检验标准是GBIT2828、GB/T132以、GBIT6378、GBlT8()54，月41，、侧，J
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