The Tuneable Pipelined Frequency Transform is a proprietary, patent applied for, hardware design for implementation in FPGA or ASIC. It is a high specification reconfigurable multi-channel filter-bank optimised for real time applications.

The TPFT should be considered as a superior replacement for standard frequency transforms (e.g. FFT) and multiple digital down-converters and filters. However, the characterising feature is its ability to be reconfigured on-the-fly to any frequency plan, thus providing a fully flexible, future-proof digital front-end for the telecommunications, defence and instrumentation markets.

The core will accept high sample rate quadrature inputs (up to ~150MHz) and provide the individual filtered channels outputs (I&Q) at baseband in a multiplexed continuous stream for further processing.

Basic TPFT

The figure above shows how the standard PFT’s coursely tuned intermediate stages, are accessed and then interleaved through a fine tuning architecture before being shaped for final output from the core

More Information

- White Paper - Need help ?

Features

• Wideband input signals processing (up to 100MHz)
• Individual channel bandwidth and centre frequency fully selectable
• On-the-fly reconfiguration to any frequency plan
• Individual channel filtering fully customisable for high stop band rejection (>100dB) and shaping/masking
• Scaleable architecture for number of channels extractable and frequency resolution
• Input bit-width customisable to specific requirements
• Tuneability achieved via RFEL’s own software interface (PC based), thus minimising development times, risks and costs

Applications

• Software Defined Radio
• Digital Down Converter replacement 
• Communication systems, Multi-standard flexible base station 
• Electronic warfare ( radar,sonar,surveillance) 
• Real time spectrum analysis , Selective Power Measurement 
• Medical instruments

Models

The TPFT architecture is available for evaluation as a model, and more details can be obtained from our sales team who will be happy to process your enquiry. Contact details can be found on the Contacts page