Fundamentals Of Real Time Spectrum Analysis

[gillan]

Consider the following common measurement tasks:

• Transient and dynamic signal capture and analysis
• Capturing burst transmissions, glitches, switching transients
• Characterizing PLL settling times, frequency drift, microphonics
• Detecting intermittent interference, noise analysis
• Capturing spread-spectrum and frequency-hopping signals
• Monitoring spectrum usage, detecting rogue transmissions
• Compliance testing, EMI diagnostics
• Analog and digital modulation analysis
• Characterizing time-variant modulation schemes
• Troubleshooting complex wireless standards using domain correlation
• Performing modulation quality diagnostics

Each measurement involves RF signals that change over time, often unpredictably. To effectively haracterize these signals, engineers need a tool that can trigger on known or unpredictable events,
capture the signals seamlessly and store them in memory, and analyze the behavior of frequency, amplitude, and modulation parameters over time. Attached a brief from Tektronix, arguably the leaders in Spectrum Analysers.

http://www.4shared.com/office/jhEgi9...time_spec.html

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