小波与微分求积法结合，用于求解梁的最大挠度值。-Wavelet and differential quadrature method for solving the maximum deflection of the beam.

Differential PSK (DPSK) 􀂄 Inexpensive 􀂄 Quadrature Phase Shift Keying (QPSK) 􀂄 Twice as spectrally efficient than BPSK 􀂄 Offset QPSK (OQPSK) 􀂄 reduce envelope variation 􀂄 π/4 QPSK 𙦦