| 1. | You get standard waveforms along with the flexibility to create your own using direct digital synthesis for a stable , accurate output
除标准波形外，还具有使用直接数位合成得到稳定和精密输出的灵活性。 |
| 2. | The agilent 33220a function arbitrary waveform generator uses direct digital synthesis techniques to create stable , low - distortion output signals so you get accurate results
Agilent 33220a函数任意波形发生器用直接数位合成dds技术产生稳定低失真的输出信号，使您得到精确的结果。 |
| 3. | The agilent technologies 33220a function arbitrary waveform generator uses direct digital synthesis techniques to create a stable , accurate output signal for clean , low distortion sine waves
Agilent 33220a函数任意波形发生器使用直接数字合成dds技术,可生成稳定精确纯净和低失真的正弦输出信号 |
| 4. | This paper illuminates theory , structure , spectrum distribution , merits and defects , especially spurs of direct digital synthesis ( dds ) , and it then introduces phase locked loop ( pll ) theory
对dds的结构、优缺点、频谱分布，特别是杂散性能进行了详细的阐述。接着，又介绍了锁相环（ pll ）的原理。 |
| 5. | With the development of digital technology , getting pulse compression signals with direct digital synthesis has been in general use these days . it is widely used to generate pulse compression signal using dds method
随着现代数字技术的发展,直接数字波形合成( dds )的方式获得脉冲压缩信号已为现代雷达普遍采用。 |
| 6. | This paper also discusses direct digital synthesis ( dds ) and digital signal process ( dsp ) in detail , because the application of digital technology is involved in software radio
本课题由于在软件无线电中还涉及了数字技术的应用，因此对其中的关键部分直接数字频率合成器( dds )和高速数字信号处理器( dsp )也进行了详细地讨论。 |
| 7. | This paper based on control theory , according to the conception of phrase lock loop and direct digital synthesis , we designed the clock circuit . it realizes the amalgamation of kinds of the ways about clock , which make it has some superiority
本论文在控制理论的基础上，以锁相频率合成和直接数字频率合成作为设计思想，搭建时钟控制电路，在业界实现了多种时钟控制电路实现方法的融合与统一，具有一定的优越性和领先性。 |
| 8. | The essential requirements for the frequency synthesizer are : 1 ) . low side band power 2 ) . high hopping speed 3 ) . short convergence time direct digital synthesis technology has the advantages of low cost , low power consumption , high frequency discrimination and short switching time
直接数字合成技术dds具有低成本、低功耗、高分辨率和快速转换时间等优点，是实现快速跳频的一个关键技术。本文讨论了如何实现高速的跳频系统。 |
| 9. | The primary work in this dissertation : ( 1 ) the principle , design and implementation of generating lfm / nlfm signals based on direct digital synthesis ( dds ) technology have been discussed especially , the system has been implemented all by author
本文的主要工作之处在于： ( 1 )讨论了基于直接数字合成（ dds ）技术产生直接中频线性调频脉压信号和非线性调频脉压信号的工作原理、设计思想和工程实现方法，并独立完成了系统的工程实现。 |
| 10. | Second , this dissertation focuses on the error analysis of digital method of the pulse compression signal generation based on lfm signals . the difference and similarity between technique of the direct reading of the stored digital waveform and technique of the direct digital synthesis were also compared
?第二部分以lfm脉压信号为基础，围绕数字脉压波形产生系统的误差分析展开，对波形存储直读法和直接数字合成法两种数字波形产生技术进行全面的分析对比。 |
