01
Radio-frequency systems and phased antenna arrays
Transceiver-module control, signal generation, channel calibration, and data exchange with a compute module.
- 01Signal generation
- 02Module control
- 03Channel calibration
- 04Data transport
FPGA development
High-performance real-time data processing
We develop the hardware and software for measurement systems: signal acquisition and synchronization, FPGA processing, data recording and transport, drivers, and application software.
- Multichannel acquisition
- Real-time processing
- Ethernet up to 100 Gbit/s
- FPGA, drivers, and software
Measurement-system components
- 01Measurement electronics
Sensors, ADCs, and receiver modules
- 02FPGA
Synchronization, processing, and control
- 03Data transport
PCIe, Ethernet, and serial interfaces
- 04Software
Drivers, data recording, and visualization
- 05Measurement result
Processed data for software and external systems
Tasks
From a single subsystem to a complete measurement system
The scope is defined by the customer’s task. We can develop FPGA firmware, an individual data-processing subsystem, or a complete system with drivers and application software.
01High-speed acquisition and data synchronization
We acquire data from multiple ADC channels, synchronize it, and pass it to processing without gaps.
The sample rate, resolution, permissible latency, and buffer capacity are calculated for the specific instrument.
Technologies used
High-speed ADC · channel synchronization · DMA · buffering · PCIe · Ethernet · data-loss monitoring
02FPGA signal processing
We implement filtering, decimation and interpolation, I/Q processing, FFT, and phase demodulation on the FPGA.
Numerical precision and operation placement are selected for the required accuracy, available FPGA resources, and permissible latency.
Technologies used
FIR and IIR filters · DDC · I/Q processing · FFT · fixed-point mathematics · phase demodulation
03Interfaces and data transport
We connect ADCs, memory, computing modules, and network equipment to the FPGA. We configure the exchange of measurement data, control commands, and diagnostic information.
Interfaces are selected for the required transfer rate, distance, reliability, and instrument design.
Technologies used
PCIe and DMA · Ethernet 1G–100G+ · JESD204 · LVDS · high-speed serial links · SPI · I²C · USB 3.0
04Measurement-electronics control
We develop control for ADCs, clock generators, optical and radio-frequency modules, and auxiliary electronics.
Equipment setup, measurement start, status monitoring, and fault handling are combined in one system.
Technologies used
Control state machines · register models · synchronization · embedded processors · telemetry · diagnostics
05Measurement system with application software
We develop FPGA firmware, drivers, communication protocols, data recording, server-side components, and the user interface.
Processing is divided between the FPGA and processor to meet performance requirements and keep the system ready for further development.
Technologies used
System structure · FPGA firmware · drivers · network and industrial protocols · data recording · visualization · connection to customer systems
Technologies
Data acquisition and processing technologies
The scope depends on the instrument. Our work covers high-speed interfaces, memory, signal-processing algorithms, FPGA firmware, drivers, and application software.
- 01
Interfaces and data exchange
Connecting measurement electronics to the FPGA, compute modules, and network equipment.
- PCIe and DMA
- Ethernet 1G–100G+
- JESD204, LVDS, and high-speed serial links
- SPI, I²C, USB 3.0, and video interfaces
- 02
Memory and data recording
Continuous acquisition, buffering, and recording at the required rate without gaps.
- DDR3 / DDR4
- High-speed and non-volatile storage
- Buffering and memory-access arbitration
- Data recording and fault recovery
- 03
Digital signal processing
Operations performed on the FPGA when a software processor cannot meet the required rate.
- FFT and spectral analysis
- FIR and IIR filters
- Decimation, interpolation, and DDC
- I/Q processing and fixed-point arithmetic
- 04
Firmware, drivers, and software
Coordinating the FPGA, compute module, and application software.
- HDL development and verification
- Drivers and binary protocols
- Software interfaces, data recording, and visualization
- Diagnostics and fault recovery
Development experience
FPGA applications in measurement and radio-frequency systems
Our experience includes radio-frequency equipment control, signal processing in fiber-optic measurement systems, and high-speed acquisition from multiple ADCs.
02
Fiber-optic measurement systems
Processing for coherent measurement instruments: ADC acquisition, filtering, phase calculation, and delivery to software.
- 01Data acquisition
- 02Filtering
- 03Phase calculation
- 04Software delivery
03
Multichannel data-acquisition systems
Synchronous acquisition from multiple ADCs, buffering, and gap-free transport to a compute module.
- 01ADC
- 02Synchronization
- 03Buffering
- 04Data transport
System components
Measurement-data processing and transport
The FPGA receives data from measurement electronics, synchronizes channels, and processes it in real time. The results are then recorded, transported over the network, and displayed in application software.
01Signal source
02Acquisition and synchronization
03FPGA processing
04Data transport and recording
05Application software
Development example
A multichannel acoustic system based on fiber-optic microphones
A coherent measurement unit interrogates a line of fiber-optic microphones. The FPGA receives the signals, performs initial processing, and transfers the results to software for per-channel and spectral analysis.
- 01Interference and background-noise suppression
- 02Spectral analysis
- 03Delay and phase-difference estimation
- 04Results delivered to software
Contact A4 Sensors