| Number of available radar objects | one R&S®SMW-K78 option
one or two R&S®SMW-B14 installed | path A: up to 6 |
| | one R&S®SMW-K78 option
four R&S®SMW-B14 installed | path A: up to 12 |
| | two R&S®SMW-K78 options
two R&S®SMW-B14 installed | path A: up to 6
path B: up to 6 |
| | two R&S®SMW-K78 options
four R&S®SMW-B14 installed | path A: up to 12
path B: up to 12 |
| Bandwidth | | up to 160 MHz |
| Test setups | radar under test (RUT) is directly connected to the R&S®SMW200A (+ R&S®FSW) via cable | conducted test |
| | RUT and R&S®SMW200A (+ R&S®FSW) are equipped with antennas and connected via air interface | over-the-air (OTA) test |
| Radar RX power setting | calculation of power received by RUT regarding two-way radar equation | radar equation |
| | power received by RUT is set manually | manual |
| Simulation setup |
| System latency calibration | R&S®SMW-K78 measures the internal system (R&S®FSW + R&S®SMW200A) latency automatically
(only available in transmit signal mode: external baseband via R&S®FSW + R&S®SMW-B10) | automatic |
| | user measures internal latency with external equipment (e.g. scope) | manual |
| Object configuration |
| Object type | arbitrary object types can run at the same time | |
| | echo is not generated | off |
| | echo for objects with variable range and constant velocity > 0 m/s is generated | moving |
| | echo for objects with constant range and no velocity is generated | static |
| | echo for objects with constant range and constant velocity > 0 m/s is generated | static + moving |
| Parameters common to all object types |
| Object name | | define 15-digit name |
| Range | | |
| Setting range | use radar range ambiguity to reduce min. range: off | 2.1 km to 10 000 km |
| | use radar range ambiguity to reduce min. range: on | 0.0001 km to 10 000 km |
| Setting resolution | | 0.1 m |
| RCS | power setting: radar equation | |
| Model | | Swerling 0 |
| Setting range | | –60 dBsm to +100 dBsm |
| Setting resolution | | 0.1 dBsm |
| Parameters for moving objects |
| Simulation mode | object moves back to start position with set velocity after reaching its end position | round trip |
| Object velocity | | |
| Setting range | the maximum Doppler shift of 190 kHz
must not be exceeded | 0.001 ms to vmax
vmax = 750 m/s or
(190 kHz / 2f ) × c, whichever is lower |
| Setting resolution | | 0.001 m/s |
| Parameters for static + moving objects |
| Object velocity | | |
| Setting range | the maximum Doppler shift of 190 kHz
must not be exceeded | 0.001 ms to vmax
vmax = (190 kHz / 2f ) × c |
| Direction | object flies toward RUT | approaching |
| | object flies away from RUT | departing |
| Simulation quantization (moving) |
| Update delay increment | object velocity ≥ 75 m/s | 500 ps |
| | object velocity < 75 m/s | 50 ps |
| Update rate delay | depending on object velocity | max. 2 MHz |
| Update rate power | depending on object velocity | max. 10 kHz |
