Tenders Are Invited For Efficient Digital Beamforming Technique Compatible With Non-Uniform Beam And Array Lattices (Artes 4.0 At 5C.492)

Tenders Are Invited For Efficient Digital Beamforming Technique Compatible With Non-Uniform Beam And Array Lattices (Artes 4.0 At 5C.492) The Objective Of This Activity Is To Develop And Evaluate Efficient Digital Beamforming Algorithms And Techniques That Are Compatible With Non-Uniform Antenna Arrays Or Non-Uniform Beam Lattices. The Developed Techniques Will Be Implemented And Evaluated On A Representative Processor Test Bed. Targeted Improvements: 30 To 70% Power Reduction On The Implementation Of Digital Beamforming Algorithms With Non-Uniform Input/Outputs With Respect To Current Digital Beamforming Implementations. Description: Current Very High Throughput Satellite (Vhts) Payloads That Employ Digital Beamforming Often Use Fast Fourier Transform (Fft) Algorithms As It Reduces The Beamforming Complexity From Nxn To Nlog(N), Where N Is The Number Of Input Values. Unfortunately, Fft-Based Beamforming Algorithms Require Uniformity Of The Antenna Array Elements And On The Generated Beam Lattice. To Achieve Full Steering Flexibility For Digitally Formed Beams, The Required Resources (Mass/Power) Are Significant And Currently It Is Not Possible To Form Hundreds Of Beams This Way. This Activity Aims To Overcome This Limitation. A Power Efficient Digital Beamforming Technique Will Be Developed That Is Compatible With Both Irregular Arrays And Irregular Beam Lattices Or Antenna Array Architectures, And That Allows Full Steering Flexibility For A High Number Of Beams. Application Scenarios Apply To Many Satcom Systems, In Particular For Non-Geostationary Satellites That Are Often More Limited In Terms Of Power And Mass Due To The Smaller Platform Capabilities. A Combined Software And Hardware Processor Testbed Will Be Developed And Used To Test And Implement The Developed Beamforming Technique Tender Link : Https://Esastar-Publication-Ext.Sso.Esa.Int/Esatenderactions/Filter/Open