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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
Features :
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Wideband
input signals processing (up to 100MHz) |
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Individual
channel bandwidth and centre frequency fully selectable |
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On-the-fly
reconfiguration to any frequency plan |
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Individual
channel filtering fully customisable for high stop band rejection
(>100dB) and shaping/masking |
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Scaleable
architecture for number of channels extractable and frequency
resolution |
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Input
bit-width customisable to specific requirements |
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Tuneability
achieved via RFEL’s own software interface (PC based), thus
minimising development times, risks and costs |
Applications
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Software
Defined Radio |
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Digital
Down Converter replacement |
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Communication
systems, Multi-standard flexible base station |
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Electronic
warfare ( radar,sonar,surveillance) |
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Real
time spectrum analysis , Selective Power Measurement |
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Medical
instruments |
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