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Custom IQ - Radar

Quick Setups

Use this Closeddrop-down menu to select a modulation type from several supported formats. A single data segment using that modulation type appears in the segment list below. Click the cell in the Constellation column to open the Constellation Setting window, providing a graphical display and editing features (video). Quick setups enable you to configure complex signals for signal generation, equivalent to 89600B VSA setups in signal analysis.

DVB-S2 and DVB-S2X quick setups also add a PLHEADER segment before the data segment, as defined in the standard.

Quick Setups IQ Settings

Standard

Modulation

Symbol Rate

Filter

DVB-S2

QPSK

 

1.0 Msps

RNYQ (0.5)

8PSK

 

16APSK

4+12APSK 2/3, 4+12APSK 3/4, 4+12APSK 4/5, 4+12APSK 5/6, 4+12APSK 8/9, 4+12APSK 9/10

32APSK

4+12+16APSK 3/4, 4+12+16APSK 4/5, 4+12+16APSK 5/6, 4+12+16APSK 8/9, 4+12+16APSK 9/10

DVB-S2X

QPSK

 

1.0 Msps

RNYQ (0.5)

8PSK

 

8APSK

2+4+2APSK 100/180, 2+4+2APSK 104/180

16APSK

4+12APSK Normal 26/45; 4+12APSK Normal 3/5; 4+12APSK Normal 28/45; 4+12APSK Normal 23/36; 4+12APSK Normal 25/36; 4+12APSK Normal 13/18; 4+12APSK Normal 140/180; 4+12APSK Normal 154/180; 4+12APSK Short 7/15; 4+12APSK Short 8/15; 4+12APSK Short 26/45; 4+12APSK Short 3/5; 4+12APSK Short 32/45; 8+8APSK Normal 90/180, 96/180, 100/180; 8+8APSK Normal 18/30; 8+8APSK Normal 20/30

32APSK

4+12+16APSK Normal 2/3, 4+12+16APSK Short 2/3, 4+12+16APSK Short 32/45, 4+8+4+16APSK 128/180, 4+8+4+16APSK 132/180, 4+8+4+16APSK 140/180

64APSK

16+16+16+16APSK 128/180, 8+16+20+20APSK 7/9, 8+16+20+20APSK 4/5, 8+16+20+20APSK 5/6, 4+12+20+28APSK 132/180,

128APSK

128APSK 135/180, 128APSK 140/180

256APSK

256APSK 116/180, 256APSK 124/180, 256APSK 128/180, 256APSK 135/180, 256APSK 20/30, 256APSK 22/30

APCO25

C4FM

4FSK (0.6 kHz, 1.8 kHz, -0.6 kHz, -1.8 kHz)

4.8 ksps

NYQ (0.2) + 1/Sinc

CQPSK*

Pi/4 DQPSK

4.8 ksps

NYQ

HCPM

4FSK (1 kHz, 3 kHz, -1 kHz, -3 kHz)

6 ksps

APCO25 HCPM

HDQPSK

Pi/4 DQPSK

6 ksps

APCO25 HDQPSK

TETRA

Pi/4 DQPSK

18 ksps

RNYQ (0.35)

NXDN

4800 bps

4FSK (0.35 kHz, 1.05 kHz, -0.35 kHz, -1.05 kHz)

2.4 ksps

RNYQ (0.2) + Sinc

9600 bps

4FSK (0.8 kHz, 2.4 kHz, -0.8 kHz, 2.4 kHz)

4.8 ksps

RNYQ (0.2) + Sinc

dPMR

4FSK (0.35 kHz, 1.05 kHz, -0.35 kHz, -1.05 kHz)

2.4 ksps

RNYQ (0.2)

DECT

2FSK (-288 kHz, 288 kHz)

1.152 Msps

Gaussian (0.5)

DMR

4FSK (0.648 kHz, 1.944 kHz, -0.648 kHz, -1.944 kHz)

4.8 ksps

RNYQ (0.2)
ARIB

T98/T61*

Pi/4 DQPSK

9.6 ksps

RNYQ (0.2)

T102

4FSK (0.33 kHz, 0.99 kHz, -0.33 kHz, -0.99 kHz)

4.8 ksps

ARIB T102 RNYQ (0.2) + Gaussian (0.769)

Zigbee

BPSK

BPSK

600 ksps

NYQ (1)

OQPSK

OQPSK

1 Msps

Half Sine

WiSUN (802.15.4g)

2FSK 50/1

2FSK (-25 kHz, 25 kHz)

50 ksps

Gaussian (0.5)

2FSK 100/0.5

2FSK (-25 kHz, 25 kHz)

100 ksps

Gaussian (0.5)

ITU-T G.9959

R2

2FSK (-20 kHz, 20 kHz)

40 ksps

Rectangle

R3

2FSK (-29 kHz, 29 kHz)

100 ksps

Gaussian (0.6)

802.15.3d

CES: pi/2 BPSK

Frame Header: pi/2 BPSK

Payload: 64QAM

25.92 Gsps

RNYQ (0.25)

* For APCO25 CQPSK and ARIB T98/T61, the ALC is set to off to achieve better EVM. For all other cases, the ALC is on.

Payload, Idle Interval, Ramp Symbols, and Number of Symbols will be set to default values.

1. Custom IQ Selection

Custom IQ Type

Choices: ASK & PSK & QAM | FSK | SOQPSK | ARTM Multi-h CPM | Analog Modulation | Radar | Channel Sounding

Default: ASK & PSK & QAM

Select the type of Custom IQ.

Radar Settings

Radar Type

Choices: FMCW | MFSK | Customized Chirp

Default: FMCW

Select the radar type. View graphical representations of each below.

ClosedFMCW

FMCW

ClosedMFSK

MFSK

ClosedCustomized Chirp

Customized Chirp

Sample Rate

Range: 1 kHz - 12 GHz

Default: 200 MHz

Enter the sample rate for radar signal.

For radar signal generation, the Oversampling Ratio under Waveform Setup node will not be used.

Sweep Time

Range: 10 ns - 1 s

Default: 1 ms

Enter the sweep time for linear frequency modulation signal.

Sweep Bandwidth

Range:

FMCW: 100 Hz - Sample Rate

MFSK: 100 Hz - Sample Rate / 2

Default:

FMCW: 100 MHz

MFSK: 100 MHz

Enter the sweep bandwidth for linear frequency modulation signal.

Frequency Offset

Range:

FMCW: -SweepBandwidth/2 - SweepBandwidth/2

MFSK: -StepFrequency * 2 - StepFrequency * 2

Default:

FMCW: 0 Hz

MFSK: -200 kHz

Enter the frequency offset for linear frequency modulation signal.

Sweep Direction Type

Choices: Up | Down | Triangle

Default: Triangle

Select the sweep direction type.

Step Frequency

Range: 0.1 Hz - SweepBandwidth / (NumberOfStep / 2 - 1)

Default: 2.0408 MHz

Enter the frequency step for MFSK signal.

Step Time

Range: 1 ns - 1 / Number Of Step

Default: 2 us

Enter the step time for linear frequency modulation signal.

Number of Step

Range: 4 - 2000

Default: 100

Enter the number of step for MFSK signal.

Number of Segments

Range: 1 - 100

Default: 6

Enter the number of chirp segments.

Total Sweep Time

Display the total sweep time for all the chirp segments.

Clear All

Clears all segments in the chirp setup table.

Frequency Start

Range: - Sample Rate / 2 - Sample Rate / 2

Enter the start frequency for current chirp segment.

Frequency End

Range: - Sample Rate / 2 - Sample Rate / 2

Enter the end frequency for current chirp segment.

Duration

Range: 10 ns to 1 s

Enter the duration for current chirp segment.