NEW: TimeView 3 Modulation Domain Analysis0 pages

TimeView™ 3
Modulation Domain Analysis
• View dynamic frequency changes
over time
• Emulation of Agilent 53310A MDA
• Accurate FM analysis on carriers up
to 20 GHz
• Sample frequency changes every
4µs in real time
• Analyze frequency in burst signals,
hopping, chirp radar, frequency
droop, etc
• Powerful analysis: Statistics
(histogram), FFT, smoothing, ADEV
and MADEV vs τ
• Zero dead-time measurements,
detect phase jumps

New version for
CNT-91 & -91R

Background – What’s a Modulation Domain Analyzer?

• Oscilloscope (Voltage vs. time - the time domain)
• Spectrum or FFT-analyzer (Voltage vs. frequency - the frequency
domain)

• Modulation Domain Analyzer (Frequency vs. time - the modulation
domain)

• Fast sampling front-end CNT-91
• Standard PC with USB or GPIB-interface running TimeView 3
The signal to be characterized is connected to the front-end input
(CNT-91 Timer/Counter/Analyzer), which samples the frequency
(or time, or phase, or voltage if selected). The data is transferred
to the PC and post-processed. All setting controls are made from
the PC. Graphs can be printed on the PC-printer and settings and
results are stored as ASCII-les, that are easily imported in various
programs, e.g. MS-Excel for further analysis.
TimeView 3 is a further renement of the current TimeView 2 SW,
with some extra functionality and a slightly different User Interface.
To make use of the extra functionality, TimeView 3 requires the
models CNT-91 or CNT-91R as front-ends. The TimeView 2
software can use any CNT-9x counter (CNT-90, CNT-90XL,
CNT-91 or CNT-91R).

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To analyze all dynamic properties of a signal, three basic tools are
needed, see gure 1:

The Pendulum Modulation Domain Analyzer TimeView 3 consists
of two parts:

...

Amplitude and frequency contents are the two most important
signal properties of any signal. Oscilloscopes are used to
analyze changes in amplitude but not changes in frequencies. The
traditional tool for analyzing the frequency contents of a signal is
the Spectrum Analyzer. This can nd static frequency components
or give an averaged view of dynamic (changing) frequencies. To
view also changing frequencies a third type of tool is needed; the
Modulation Domain Analyzer (MDA).

TimeView™ - an MDA Solution

O 9001

.

Dynamic Signal Analysis of Amplitude and Frequency

The modulation domain is the “missing domain” that complements
the time and frequency domains. TimeView™ 3 is a piece of SW
that works with the Pendulum Timer/Counter/Analyzers CNT-91
and CNT-91R (via USB or GPIB) and converts the Timer/Counter/
Analyzer into a Modulation Domain Analyzer.

..

An MDA (Modulation Domain Analyzer) could be thought of
as a frequency sampler analogous to a digital oscilloscope that
is a voltage sampler. An MDA displays frequency vs time, just
like an oscilloscope displays voltage vs time. You could think
of a Modulation Domain Analyzer as a “Frequencyscope”. For
example for an FM signal, the MDA would show the modulation
frequency (f vs t), whereas an oscilloscope would show the carrier
frequency (V vs t).