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resources:eval:user-guides:ad-fmcomms2-ebz:software:datafiles [11 Jul 2014 04:24] – [AD-FMCOMMS2/3/4 Datafiles] Robin Getzresources:eval:user-guides:ad-fmcomms2-ebz:software:datafiles [27 Jan 2021 22:20] (current) – use wp> interwiki links Robin Getz
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 === Data === === Data ===
 +<WRAP round info 65%>
 +Once the transmitted signals are in workspace, we use the following two lines to write them to a text file:
 +
 +<code matlab>
 +newdata = [I1 Q1 I2 Q2];
 +
 +dlmwrite('qpsk.txt',newdata,','); 
 +</code>
 +
 +You open this text file and manually add the word "TEXT" at the very beginning, and then save the file.
 +                                                        
 +</WRAP>
 +
 +
 <WRAP round download 80%> <WRAP round download 80%>
 You can download the generated data from below: You can download the generated data from below:
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 === Model === === Model ===
  
-The figure below shows a QPSK transmission model with the pulse shaping filters. Since pulse shaping filters are often distributed as a matched pair between transmitter and receiver, we use the filter shape of ‘Square root’(([[http://en.wikipedia.org/wiki/Root-raised-cosine_filter|Root-raised-cosine filter]])).+The figure below shows a QPSK transmission model with the pulse shaping filters. Since pulse shaping filters are often distributed as a matched pair between transmitter and receiver, we use the filter shape of ‘Square root’(([[wp>Root-raised-cosine_filter|Root-raised-cosine filter]])).
  
 {{QPSKwithfilter.png?900|Subsystem diagram}}   {{QPSKwithfilter.png?900|Subsystem diagram}}  
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 ===== MSK ===== ===== MSK =====
  
-MSK stands for minimum shift keying. It is one type of the continuous phase modulation (CPM) schemes (([[http://en.wikipedia.org/wiki/Minimum-shift_keying|Minimum-shift keying]])). In this section, we use "MSK Modulator Baseband" block to modulate the input random binary bits. In other words, the input is either 0 or 1.+MSK stands for minimum shift keying. It is one type of the continuous phase modulation (CPM) schemes (([[wp>Minimum-shift_keying|Minimum-shift keying]])). In this section, we use "MSK Modulator Baseband" block to modulate the input random binary bits. In other words, the input is either 0 or 1.
 ==== Model ==== ==== Model ====
  
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 The figure below shows a LTE example according to the specifications developed by the Third Generation Partnership Project (3GPP). It highlights only the downlink physical channel (PDSCH) processing.  In order to obtain the transmitted data, we add a “Signal to Workspace” block on the transmitter side (circled in red). By double clicking the "Model Parameters" block, we can change the model settings such as channel bandwidth, antenna configuration and etc. The figure below shows a LTE example according to the specifications developed by the Third Generation Partnership Project (3GPP). It highlights only the downlink physical channel (PDSCH) processing.  In order to obtain the transmitted data, we add a “Signal to Workspace” block on the transmitter side (circled in red). By double clicking the "Model Parameters" block, we can change the model settings such as channel bandwidth, antenna configuration and etc.
  
-Since LTE is a sophisticated standard, you are encouraged to read the Help Document of this example and its related references to get more information (([[http://www.mathworks.com/help/comm/examples/lte-phy-downlink-with-spatial-multiplexing.html|LTE PHY Downlink with Spatial Multiplexing]])).+Since LTE is a sophisticated standard, you are encouraged to read the Help Document of this example and its related references to get more information (([[mw>help/comm/examples/lte-phy-downlink-with-spatial-multiplexing.html|LTE PHY Downlink with Spatial Multiplexing]])).
  
 {{LTE.png?900|Subsystem diagram}} {{LTE.png?900|Subsystem diagram}}
resources/eval/user-guides/ad-fmcomms2-ebz/software/datafiles.1405045475.txt.gz · Last modified: 11 Jul 2014 04:24 by Robin Getz

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