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Reduced Complexity Detection Methods For Continuous Phase Modulation, Erik Samuel Perrins
Reduced Complexity Detection Methods For Continuous Phase Modulation, Erik Samuel Perrins
Theses and Dissertations
Continuous phase modulation (CPM) is often plagued by high receiver complexity. One successful method of dealing with this is the well-known pulse amplitude modulation (PAM) representation of CPM, which was first proposed by Laurent. It is shown that the PAM representation also applies to multi-h CPM and ternary CPM, two previously unconsidered cases. In both cases it is shown that many PAM components may be required to exactly represent the signal. This is especially true of partial-response systems where the memory of the signal is long. Therefore, approximations are proposed which require only a limited number of terms. These extensions …
A Pam Decomposition Of Weak Cpm, Mason B. Wardle
A Pam Decomposition Of Weak Cpm, Mason B. Wardle
Theses and Dissertations
The Enhanced Flight Termination System uses weak CPM as its modulation scheme and a limiter-discriminator as its demodulation scheme. A PAM representation of weak CPM was developed which representation provided the necessary componenents to build a simplified PAM-based receiver that outperformed the EFTS limiter-discriminator, even in the presence of phase noise. The PAM representation also provided a new perspective into the negative characteristics of weak CPM.