Signal suppression effects in an ideal hard‐limiter for the many‐carrier case

G. Comparetto · International Journal of Satellite Communications · 1989

Abstract An analytical expression, previously derived in a companion paper published in Volume 7, Issue No. 1 of the International Journal of Satellite Communications (pp. 3–6), was used to generate signal suppression data for 3, 5, 10, 20, 40 and 55 input signal scenarios in the presence of Gaussian noise assuming an ideal hard‐limiter for a wide range of input signal ratios. Additionally, the signal suppression effect has been quantified for up to 200 input signals with input SNRs of ∞, 6 dB and 0 dB for the case in which a single higher‐power input signal exists in the presence of lower, equal‐powered signals. The data support the argument that the signal suppression effect is significantly reduced as the number of input signals is increased for the scenarios investigated. Also, the generated data show that the signal suppression effect decreases asymptotically to a value less than 1 dB for the case of a single higher‐power signal in the presence of varying degrees of input Gaussian noise and up to 200 total signals. Finally, a Gaussian approximation of the input signal ensemble was verified for the full range of input signal sets investigated.

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