3

Figure 2. Histogram and statistics on PRI (yellow) and PW (green)

Figure 3. PAS system shows the RADAR mode changes with PRI vs time and PW vs time

Extreme measurement

eficiency

The advantages are clear when per-

forming time interval analysis based on

zero dead time, time-to-data-converter

(TDC) technology. Extreme efficiency in

memory use and data transfer can be

achieved by eliminating the dead time

when measuring pulsed RF signals.

By storing only the precise times for

rising and falling edges of the RF pulse,

the PAS makes optimal use of the 4M

event memory in the Keysight TDC.

The dual memory architecture of this

TDC supports unrestricted time capture

length at rates as high as 1M events

per second. Extreme accuracy and time

resolution of 50 ps is achieved inde-

pendent of time record length. The PAS

system provides a wide bandwidth,

2 channel RF input reference module

(IRM) with built-in detectors and an

ultra low noise/low jitter 10 MHz ref-

erence oscillator. This IRM combines

all of the necessary signal routing, TDC

clock and 10 MHz reference outputs.

These features along with the flexible

internal and external triggering func-

tions allow you to synchronize the PAS

and other measurement instruments

with your RADAR system operation.

Time interval analysis using

the Keysight pulse analyzer

system

For applications focused on time inter-

val analysis of RADAR signals, use the

PAS system to make measurements

such as:

– RF pulse width (PW) versus time

– RF pulse repetition interval (PRI or PRF)

versus time

– PW and PRI histograms and statistics

(min/max, mean, std deviation)

– Raw time interval data and frequency

versus time data

– Flexible internal and external triggering

functions

– Markers and zooming features