![]() ![]() A possible solution to this problem, that has recently been advocated, relies on a process termed 'augmentation'. Consequently a method of amplifier linearisation is required that has minimal impact on the power consumption, size and noise figure of the receiver system. In military aircraft, where weight and space are at a premium, these effects are difficult to accommodate. Conventional methods that are used to improve linearity, such as increasing device size, bias current or supply voltage, inevitably result in enhanced thermal noise, higher power consumption and heat dissipation. The extremely wide dynamic range of the target returns in such systems leads to challenging receiver design compromises between amplifiers exhibiting low distortion or low thermal noise. In airborne military phased array radar systems, detection capability is influenced as much by receiver linearity as it is by system noise performance. ![]()
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