shadow_left
Logo
Hits Counter (訪客數)
訪客
Shadow_R

登入表單 (Log In)






遺失密碼
 
   

Tone Spread Forum
歡迎, 訪客
登入註冊.    遺失密碼?
Measuring ACPR of W-CDMA Signals with a Spectrum (1 人正在瀏覽) (1) 訪客
WCDMA /LTE 量測
前往最底 張貼回覆 我的最愛: 0
主題: Measuring ACPR of W-CDMA Signals with a Spectrum
#146
mikechang (管理員)
管理員
文章: 156
graph
用戶離線 點擊這裡檢閱此用戶的個人檔案
Measuring ACPR of W-CDMA Signals with a Spectrum 8 年, 9 個月 之前 聲譽: 0  
When measuring power in the adjacent channels of a W-CDMA signal,requirements for the dynamic range of a spectrum analyzer are very challenging. This is due to the stipulations of the W-CDMA standard and also due to the nature of the W-CDMA signal. To achieve optimum results, an understanding of the signal and also the internal structure of the spectrum analyzer is necessary.
This application note presents an overview of the spectral behavior and the amplitude distribution of W-CDMA signals. The dynamic range limitations of spectrum analyzers with ACPR measurement of
W-CDMA signals will be shown referred to the signal properties.
Next, the internal structure of the spectrum analyzer is discussed with reference to its influence on the power measurement of W-CDMA signals, in particular the signal path and power detection. Software correction of the measured power in the adjacent channels can be used
to overcome some limitations. Methods, prerequisites, limits, and the additional error due to the correction are discussed. Results achieving about 80 dBc adjacent channel power ratio are presented.
檔案附件:
檔案名稱: 2DA_12521_0.pdf
檔案大小: 294290
 
舉報給版主   已登入 已登入  
  管理員已關閉公開寫入.
前往最頂 張貼回覆
Powered by FireBoard
 
   
 
Advertisement