Maximum-length binary sequences

Maximum length binary sequences (MLBSs) of length N = 2l-l, where I is a positive integer, have a perfectly flat power spectrum [77]. The deconvolution in Eq. (61) can be computed very efficiently by means of a fast Hadamard transform, and they have, for example, been employed for Hadamard NMR spectroscopy [78]. 

Fig. 27.3-bit shift register to generate a maximum length binary sequence of length 23-1=7. The summation is modulo 2... 

An interesting application of the Hadamard transformation is its use for determination of the linear impulse-response function with maximum length binary sequences or m... 

It is possible to calculate for which values of [MJ, [MJ and [M3] the alternation degree reaches its maximum (40). In general such values of the monomer concentrations are rather complicated functions of the reactivity ratios. It can be said that, when the alternation is maximum, the average sequence length is the Same for all the monomers. Unlike in the case of binary copolymerization, the maximum alternation does not always correspond to the composition at which the monomers are present in the terpolymer in equimolecular amounts. 

Such a solution similar to Fig. 33c has been in use in the Southampton University, UK [7]. Excitation signal used in [7] is a pseudorandom sequence of binary pulses - the maximum length sequence MLS, see Fig. 27, enabling to perform fast and wide band impedance spectroscopy. The response signal is processed using a... 

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