【資料成文時(shí)間】：2007-12-04
【語言】：english
【頁數(shù)】：
【何人（公司）所著】：ANRITSU
【文件格式】：rar
【文件原名】：HH
【摘要或目錄】：
HHSTV6_58.part1.rar (1.39 MB)

頻率駐波比圖轉(zhuǎn)為距離駐波比圖

The Site Master Software Tool can convert to DTF plots the following plot types:
Return Loss in Frequency Domain (FD-RL) plots, and
SWR in Frequency Domain (FD-SWR)

To convert from Frequency Domain to Distance to Fault, follow these steps:
Step 1.Capture or load a plot.
Step 2.Click the FIFTHbutton on the toolbar.
Step 3.A dialog will open allowing you to specify the cable parameters, start distance, and stop distance.The cable type may be selected from the pull-down list.Selecting a cable from the list automatically sets the propagation velocity and insertion loss.
To manually enter the dielectric constant and insertion loss, you must select the Custom cable type from the top of the list.
The maximum unaliased range for the plot is displayed in blue.This range is a function of the raw data frequency range and the propagation velocity of the cable.
Select the Windowing Method (See Using DTF Windowing) and the Data Format.
Step 4.Click OK when finished.

A new window will open showing the converted plot.Use the cursor to read out values shown in the bottom tray of the PC screen, at each point along the DTF trace. Maximize the plot for best cursor resolution.
Note: The default distance units (meters or feet) can be changed by selecting Default Plot Settings from the Settings menu.The stop distance entry must be less than or equal to the maximum unaliased range, and the start distance must be less than the stop distance.

通過以上步驟，可以將頻率駐波比圖轉(zhuǎn)為距離駐波比圖，相反過程暫時(shí)沒有找到解決方法。