A new method for restraining the spurious caused by phase truncation in DDS
抑制DDS技术中相位舍位误差的新方法
At present,how to reduce the spurious caused by phase truncation is researched abroad in different research domain.
为了描述相位舍位杂散的来源,该文首先介绍了DDS工作原理,然后分析了其杂散模型,最后总结了常用的抑制方法。
There are several sources of spurious signal:phase truncation,amplitude quantization,DAC\'s non-ideal characteristics,etc.
杂散特性限制着直接数字频率合成(DDS)技术的应用和发展,其中相位舍位、幅度量化和DAC的非理想特性等是影响DDS输出频谱质量的主要杂散源。
Spectrum Analysis of Spurious Signals in Direct Digital Frequency Synthesizer Due to Phase Truncation
DDS相位舍位杂散信号的频谱分析
A new method for restraining the spurious caused by phase truncation in DDS
抑制DDS技术中相位舍位误差的新方法
Lao She was a great writer.
老舍是一位伟大作家。
It is requested that you reserve a place for me in a residence hall on campus.
请在校内学生宿舍为我预定一个床位。
post-tied departmental quarters
为职位工作需要而设的部门宿舍
operational post-tied quarters
为职位工作需要而设的宿舍
The final numerical values, as displayed, were rounded off to three decimal places.
所表现出的最终数值舍入到小数三位。
3.338 roudned off to two decimals becomes 3.34.
3.338四舍五入到两位小数是3.34。
Placement Office of the Elderly [Social Welfare Department]
安老院舍宿位办事处〔社会福利署〕
All the money(allocated)for Building the Bachelor quarters has been put in place
修建单身宿舍的资金已全部到位
A Study of Planning Orientation for the Project of the Normal Universities;
高等师范院校校舍工程规划定位研究
On Elevating Dormitory Culture Grade in University;
关于提高大学生宿舍文化品位的思考
They provided 1237 high-quality quarters, replacing 534 very old Junior Police Officers quarters at sites on Hollywood Road and Canton Road.
新建宿舍提供1237个优质单位，补替原本位于荷李活道和广东道的534个旧宿舍单位。
Rounds a number to a specified number of decimal places or to a whole number if no decimal places are specified.
将数字四舍五入到指定的小数位数，或如果未指定小数位数，则四舍五入为整数。
Work completed during the year included 110new quarters at Fung Shing Street and 27 at Muk Lun Street.
年内，丰盛街的110个新宿舍单位及睦邻街的27个新宿舍单位先后竣工。
75.38rounded off to the nearest tenth would be75.4.
75.38四舍五入到小数点之后的一位数字是75.4。
Once upon a time there lived in a lonely cottage, surrounded by a garden, a poor widow.
从前，一所孤僻的农舍里住著一位贫穷的寡妇。
His vacation of a good position in the Post Office was unwise.
他舍弃在邮政局的一个好职位是不明智的。
