| 1. | On the embedded converter
7上变频器内置 |
| 2. | Multi - up converter
多用途上变频器 |
| 3. | In this paper a planar structure scheme is utilized and up - converter of this structure is studied here
本文中采用平面结构的毫米波上变频器方案，对该频段的上变频组件进行了研究。 |
| 4. | Methods of measurement for radio equipment used in satellite earth stations - part 2 : measurements for sub - systems - section four : up - and - down converters
卫星通信地球站无线电设备测量方法第2部分:分系统测量第4节:上变频器和下变频器 |
| 5. | Methods of measurement for equipment used in digital microwave radio transmission systems - measurements on satellite earth stations - up - and down - converters
数字微波无线电发射系统设备测量方法.卫星地面站测量.上变频器和下变频器 |
| 6. | The paper also studies the mechanism of the im distortion produced in the up - converter , and presents the approach to minimize the im distortion effectively
同时，文中对上变频器的交调失真的产生机理进行了详细讨论并指出了降低交调失真的方法。 |
| 7. | Methods of measurement for equipment used in digital microwave radio transmission systems - part 3 : measurement on satellite earth stations - section 5 : up - and down - converters
数字微波无线电发射系统使用设备的测量方法.第3部分:卫星地面站的测量.第5节:上变频器和下变频器 |
| 8. | The transmitter is capable , when coupled with appropriate software , of digital modulation schemes such as pi - qpsk , gmsk and so forth , and supervised by a personal computer
它主要由一片dsp与可编程数字上变频器构成，可以通过pc机进行监控，通过加载合适的软件实现各种调制方式如pi 4 - qpsk ， gmsk等。 |
| 9. | This paper introduced the advantage and the operational principle of ad9857 . it illustrates the application of ad9857 , which bases the platform of dds + dsp , in all digital ds - ss bpsk modulation
摘要介绍数字正交上变频器ad9857的突出优点和工作原理，并分析其在基于dds + dsp平台的全数字bpsk扩频调制中的应用。 |
| 10. | In the microwave and milli - wave system , the performance of the up - mixers play a key role in the whole system . this dissetation make a research in the theoretics and design of the milli - wave up - mixers and the lo multipliers
在微波、毫米波系统中,性能优越的上变频组件对系统性能起着关键性的作用。本文对毫米波上变频器及其本振倍频链的理论和设计进行了研究。 |
