完善资料让更多小伙伴认识你,还能领取20积分哦, 立即完善>
我正在使用E5052B信号源分析仪来获取相位噪声数据,载波频率为20.460802MHz,频率范围为1Hz至5MHz。
我试图将导出为.csv文件的相位噪声数据转换为RMS抖动(弧度),但是我在整个过程中无法跟踪单位。 要获得相位噪声的RMS抖动(以弧度为单位),必须对相位噪声进行积分。 什么是集成相位噪声的单位以及它们如何取消。 我目前使用的等式是A =相位噪声(L(f))+ 10 * log10(频率2-频率1)并以弧度生成RMS抖动值我使用sqrt(2 * 10 ^(A / 10) ))。 另外,10 * log10(frequency2- frequency1)的单位是多少,如果L(f)是Pcarrier和Poffset的比值,单位为dBm,单位为dBc / Hz,如果转换为单位,则为单位 线性值。 感谢您对这些问题的任何见解。 以上来自于谷歌翻译 以下为原文 I am using an E5052B Signal Source Analyzer to acquire phase noise data with a carrier at 20.460802MHz from 1Hz to 5MHz. I am trying to convert the Phase Noise data exported as a .csv file to RMS Jitter(radians), but I'm having trouble following the units through the process. To get RMS Jitter, in radians, from Phase Noise you must integrate the Phase Noise. What are the units of integrated Phase Noise and how do they cancel. The equation I am currently using for this is A = Phase Noise (L(f)) + 10*log10(frequency2- frequency1) and to generate the RMS Jitter value in radians I am using sqrt(2*10^(A/10)). Additionally, what are the units for 10*log10(frequency2- frequency1) and if L(f) is the ratio of Pcarrier and Poffset in dBm, and that has units of dBc/Hz, what would be the units if it were converted to a linear value. Thank you for any insight you might have on these questions. |
|
相关推荐
2个回答
|
|
查看附加文档是否有帮助。
如果您还有疑问,请告诉我 以上来自于谷歌翻译 以下为原文 See if the attached document helps. Let me know if you still have questions 附件 |
|
|
|
.pdf与我一直使用的方程式相同。 当我从一个等式移动到另一个等式时,我的问题与单位发生的事情更相关,例如当我在带宽上积分时,我使用的等式是Area = L(f)+ 10 * log(f2-f1) 。 L(f)以dBc / Hz为单位。 10 * log(f2-f1)应该具有dB-Hz的单位。 这意味着我应该为Area提供无单位值。 真的吗。 跟进问题,因为L(f)是Poffset和Pcarrier的比率(L(f)= Po / Pc),因此如果你增加Pcarrier,你会减少L(f),这反过来会降低抖动。 如果这是真的,那么可以通过增加载波的功率来消除抖动。 这是真的? 以上来自于谷歌翻译 以下为原文 The .pdf has escentually the same equations I've been using. My question is really more related to what happens to the units as you move from one equation to the next, example When I integrate over a bandwidth, the equation I use is Area = L(f) + 10*log(f2-f1). L(f) is in dBc/Hz. 10*log(f2-f1) should have the units of dB-Hz. Which means I should have a unit-less value for Area. Is that true. Follow up question, since L(f) is the ratio of Poffset and Pcarrier(L(f) = Po/Pc), it follows that if you increase Pcarrier you decrease L(f), which in turn decreases Jitter. If this is true, then one could remove Jitter by increasing the power of the carrier. Is this true? |
|
|
|
只有小组成员才能发言,加入小组>>
1201 浏览 0 评论
2338 浏览 1 评论
2139 浏览 1 评论
2012 浏览 5 评论
2887 浏览 3 评论
936浏览 1评论
关于Keysight x1149 Boundary Scan Analyzer
687浏览 0评论
N5230C用“CALC:MARK:BWID?”获取Bwid,Cent,Q,Loss失败,请问大佬们怎么解决呀
789浏览 0评论
1202浏览 0评论
小黑屋| 手机版| Archiver| 电子发烧友 ( 湘ICP备2023018690号 )
GMT+8, 2024-11-10 18:52 , Processed in 1.417380 second(s), Total 80, Slave 64 queries .
Powered by 电子发烧友网
© 2015 bbs.elecfans.com
关注我们的微信
下载发烧友APP
电子发烧友观察
版权所有 © 湖南华秋数字科技有限公司
电子发烧友 (电路图) 湘公网安备 43011202000918 号 电信与信息服务业务经营许可证:合字B2-20210191 工商网监 湘ICP备2023018690号