Descrizione

Key Facts
  • Realtime signal generation of CW, unmodulated rectangular CW pulses and pulses with linear frequency modulation or Barker codes with the R&S®Pulse Sequencer Software together with the options R&S®SMW-K300 and R&S®SMW-K301
  • Sequencing of arbitrary waveform segments
  • Realtime change of amplitude, offset frequencies, relative phase, pulse width and off times
  • Signal generation based on time of arrival information (ToA) embedded into the sequencing list
  • Ultralong playtimes
  • Support of loops, nested loops and repetitions
  • The R&S®SMW-K501 extended sequencing option can be used manually via sequencing lists and waveform segments or via the R&S®Pulse Sequencer software and options R&S®SMW-K300 and R&S®SMW-K301
  • Intuitive and easy-to-use graphical user interface in manual mode

Brief Description The R&S®SMW-K501 extended sequencing option can be used manually via sequencing lists and waveform segments or via the R&S®Pulse Sequencer Software and its options R&S®SMW-K300 and R&S®SMW-K301. If used with the R&S®Pulse Sequencer Software and its options, the software calculates all required signals and required sequencing lists and transfers them to the signal generator. Continuous wave signals, unmodulated rectangular CW pulses and pulses with linear frequency modulation or Barker codes are calculated in realtime inside the R&S®SMW200A. Also pre-calculated waveform segments can be used with these sequencing lists. Changes of amplitude, offset frequency, pulse width, offset phase and off time are always applied in realtime as defined by the sequencing list. The start time of the signal generation process is defined by a relative time stamp with time of arrival (ToA) information. In user mode, the R&S®SMW-K501 option allows sequencing of waveform segments by using user defined XML sequencing lists. It supports loops, nested loops and repetitions, enabling ultralong playtimes. In both cases, memory requirements are reduced to a minimum and playtime is increased enormously.
Specifications
Specifications
Modes    
User mode sequencing via user-defined XML lists   
R&S®Pulse Sequencer Software mode sequencing via R&S®Pulse Sequencer Software  
Parameter types for R&S®Pulse Sequencer Mode
Data format
Sequencing file   mandatory, memory shared with I/Q data and segment addresses 
File size
Sequencing file  rectangular pulses, unmodulated, variable amplitude, 5 ms PRI 187 kbyte/min
  rectangular pulse, linear FM, variable FM, variable amplitude, phase and frequency, 5 ms PRI 305 kbyte/min.
Setting granularity
Time  with R&S®SMW-B10 option 5 ns
Amplitude   16 bit (voltage-based)
Phase   <0.01 degrees
Frequency with R&S®SMW-B10 option  0.05 Hz
I/Q segments
Maximum individual segments   16 777 216 
Length granularity with R&S®SMW-B10 option 32 samples
Timing
Maximum play time with R&S®SMW-B10 option 24 h
Minimum pulse width with R&S®SMW-B10 option, real time 1 sample, 5 ns
  with R&S®SMW-B10 option, I/Q segment 1 samples, 5 ns
Minimum PRI   1 µs
Frequency switching with R&S®SMW-B10 option 1 sample, 5 ns
Real time MOP types
Linear FM   up, down, triangular
Phase   Barker
Modes
Linear FM   up, down, triangular
Phase   Barker
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