Abstract
For symbol timing recovery in digital receivers, a modified form of the Gardner detector is introduced. If applied a tracking loops for M-PSK modulated signals shaped as raised cosines, it is shown that the suggested synchronizer achieves a definitely better jitter performance (Gaussian and self-noise domain) than the original proposed by Gardner. In particular, this turns out to be true for baseband shapes with small roll-off factors as it is required for bandwidth-efficient systems
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