Application Note Explores Modulated Carriers

Oct. 22, 2004

Complex modulated signals are used throughout modern communications systems. One method of analyzing such signals is through the use of statistical methods, notably probability functions. A free application note from Boonton Electronics (Parsippany, NJ), "Analysis of Complex Modulated Carriers Using Statistical Methods," explains how such functions can be used in conjunction with a digital peak power measurement system to study such complex signals.

The application note includes a simplified view of the example peak power measurement system, along with details on calibration methods for the system. The note also describes how statistical methods are applied at different sampling rates to arrive at a value of how often a specific power level occurs during a measurement. The literature explains these of probability distribution functions (PDFs), cumulative distribution functions (CDFs), and complementary CDFs (CCDFs) and how they can be used for different modulation formats. The six-page application note is available for free download from the company's web site.

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About the Author

Jack Browne

Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.