RU2003100242A - DIGITAL SYNTHESIS OF HARMONIOUS OSCILLATIONS IN THE RESIDUAL CLASS SYSTEM - Google Patents

Claims (1)

A digital harmonic synthesizer in the system of residual classes, containing a clock generator and a low-pass filter (LPF), the output of which is the output of the device, characterized in that N ring shift registers (KRS), N tabular modulators, N controlled phase shifters are introduced into it , a harmonic signal generator, a phase detector and a device for sampling and storage, and the i-th cattle

contains m _i , digits (m ₁ , m ₂ , ..., m _N are coprime positive integers), output of the jth digit

of the i-th cattle is connected to the j-th unitary code of the first operand of the i-th

modulo table multiplier, to the corresponding bits of the second operand of which is connected the unitary remainder code modulo m _{i of} the synthesizer frequency value, the outputs of the kth and lth tabular multipliers modulo (

[•] is the integer part of the number) respectively connected to the first inputs of the kth and lth controlled phase shifters, while the output of the harmonic signal generator is connected to the second inputs of the first (p = 1) and

guided phase shifters, outputs r

and q

controlled phase shifters are connected respectively to the second inputs of the (p + 1) -th and (q + 1) -th controlled phase shifters, and the outputs

of the th and Nth controlled phase shifters - to the first and second inputs of the phase detector, respectively, the output of which is connected to the first input of the sampling and storage device, and the output of the clock generator is connected to the clock inputs of the ring shift registers and the second input of the sampling and storage device, the output of which connected to the input of the low-pass filter.