The Creonic Doppler Channel IP is a Doppler shift frequency (DSF) generator capable of introduce a shift frequency to samples as a phase offset. The IP was developed with the aim of allowing the performance evaluation of a low earth orbit (LEO) digital communication system. Unlike a software-based DSF generator, which might take several hours and even days for the stated purpose, a hardware-based DSF generator requires significantly less time. Run-time is reduced by several orders of magnitude
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Product Brief
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LEO Digital communication systems for which a Doppler channel is required
- Support for orbital heights (h) in the range from 200 to 2000 km
- Support for satellite frequency bands: L, S, C, X, Ku, Ka-band
- Support for sample frequencies ( fs) in the range from 9 Ksps to 510 Msps
- Support variations in the initial elevation angle due to different latitudes, obstructions in the visibility region, and regulatory requirements
- Operation in digital Base Band
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- Design-time configuration of the LEO altitudes range
- Besides, the number of angles in the range from 0 to π rad, followed by the pre-calculation of sine and cosine functions. The IP uses the fast inverse square root algorithm, set up with three iterations to ensure accuracy
- Low-power and low-complexity design
- AXI4-Stream interface for easy integration
- Available for ASIC and FPGAs (AMD / Xilinx, Intel / Altera, Microchip)
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