Compact ReGen GNSS RF simulator systems
Simceiver A3-U3 and A1-U2 provide compact GNSS RF simulation. Recording, controlled playback and ARAMIS receiver processing are optional modules.
Simceiver A3-U3Provisional enclosure shown; final panel details may vary.
Simceiver family
Use each Simceiver as a compact simulator or as a module in a larger test system. Add recording, playback or receiver processing when required.
USB 3 ReGen simulator for dual-frequency receiver testing or two independent single-frequency antenna or vehicle scenarios.
A proven one-board, single-frequency USB 2 Simceiver for universities, teaching laboratories, research groups and OEM applications requiring multiple identical systems.
For four-RF and CRPA simulation, use a Replicator A4 configuration.
Operating paths
Generate an 8-bit simulated signal file with ReGen. Optional playback hardware reproduces it as RF. Optional ARAMIS software processes it directly.
Generate and transmit civil GNSS signals directly in real time through the 8-bit simulation path. No recording stage is required.
With the recording option, capture a selected live GNSS band. Add ARAMIS processing or controlled RF playback when required.
Recording and RF playback are separate operating modes. There is no real-time record-to-transmit relay path.
Selective baseband / digitized-IF architecture
Simceiver is configured around selected GNSS centre frequencies and receiver-test objectives. The recording preserves the complete signal mixture within the selected band for later software-receiver processing and controlled RF reproduction.
Two-bit recording reflects the low-bit quantization commonly used inside high-performance GNSS receivers. For thermal-noise-dominated GNSS signals, additional recording bits can multiply data volume without improving a typical receiver-level test in proportion.
The optional ARAMIS receiver processes simulated or recorded DIF and provides access to receiver data and software interfaces.
Signal-focused sampling and low-bit quantization keep recordings practical to store, transfer, inspect and reuse. The result is suited to iterative laboratory work rather than one-time bulk capture.
RF configurations
Bands, sampling, bandwidth and software options are defined for the receiver and test objective. Replicator covers four-RF requirements.
Simceiver A3-U3
Combine two selected GNSS frequency bands at the SUM output for one vehicle scenario and receiver test.
Simceiver A3-U3
Use RF1 and RF2 for two independent single-frequency antenna or vehicle scenarios.
Simceiver A1-U2
Use one standardized RF path for simulation. Add recording and playback if required.
Simceiver A1-U2
The A1-U2 is a standardized single-frequency USB 2 simulator for projects requiring multiple identical compact units.
Official Cabinet Office reference
The Cabinet Office, Government of Japan, lists the original Simceiver implementation among products supporting the Quasi-Zenith Satellite System (Michibiki) and documents its GNSS simulation, recording and playback functions.
This official entry documents the Simceiver product lineage; current configurations and specifications are shown above.
https://qzss.go.jp/en/usage/products/ip-solutions_170202.htmlProduct positioning
Simceiver is the compact platform. Replicator is the rackmount platform. Recording, playback and receiver processing are options.
| Capability | Simceiver A3-U3 | Simceiver A1-U2 | Replicator |
|---|---|---|---|
| Simulator outputs | SUM for combined dual-frequency, or RF1 + RF2 for two independent single-frequency scenarios | 1 RF, single frequency | A1, A2, A4 and mixed configurations |
| Simulation role | Dual frequency or two independent antennas / vehicles | Single frequency | Advanced multi-frequency and multi-output tests |
| Recording | Optional, two channels | Optional, one channel | Separate PORTOS recorder |
| Recording architecture | Selected GNSS bands; 2-bit digitized-IF recording | Selected single GNSS band; compact digitized-IF recording | Defined by the separate PORTOS recorder |
| Playback | Optional | Optional | Optional |
| ARAMIS | Optional receiver module | Optional receiver module | Configured separately |
| Recorded-data use | Receiver-level verification, software processing and controlled RF reproduction | Compact recording and controlled RF reproduction | Advanced simulation; recorded-data workflow depends on recorder configuration |
| Ordering | Individual configured systems | Volume orders; minimum order quantity applies | Individual configured systems |
| Primary role | Compact high-end integrated laboratory | Multi-unit laboratory, education and OEM deployment | Full rack-mount advanced-test platform |
Controlled record & playback
When fitted, recording and RF playback operate separately. Saved data can be checked before later controlled RF reproduction.
No real-time recording-to-transmission path.
With receiver hardware, selected Simceiver configurations can support optional loose, tight or ultra-tight IMU/INS integration and BGPS™ instant-positioning know-how.
Configuration enquiry
For A3-U3, define dual-frequency or two-antenna / two-vehicle operation. For A1-U2, define the single-frequency configuration and quantity. Add recording, playback, receiver and integration options as required.