SU1423997A1 - Haar signal generator - Google Patents

Abstract

The invention relates to automation and computing and can be used in spectral analysis and communication devices for generating orthogonal signals. The purpose of the invention is to simplify a generator. The Haar signal generator contains a clock generator 1, a counter 2, a shift register 3, and multipliers 4. The introduction of a group of shift registers allows one to exclude from the generator circuit a multi-bit shift register and a group of subtractors. 1 il.

Description

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The invention relates to automation and computer technology and can be used in spectral analysis and communication devices for generating orthogonal signals.

The aim of the invention is to simplify; generator.

I The drawing shows the functional diagram of the Haar generator for the I case (2 is the number of functions taking into account the constant component),

The circuit contains a clock generator 1j m-bit counter 2 ring shift register 3 (bits in the i register, i l-Cm-l), multipliers 4, outputs 5-11 s The output signals of the bits of the counter 2 are represented by the levels t1, the output signals registers 3 - levels 0,1. This allows you to implement a multiplier 4, for example, IB in the form of switch 5; the first information | input of which is connected to the discharge output of counter 2; the second information input is grounded (level source 0) 5 control input is connected to the discharge output of register 3, and the switch output corresponds to: the output of the smartkitel 4 (the signals | At the outputs of register 3 can also be represented by levels +1).

The generator works as follows

: In the initial state, the counter 2 | is reset, and in the ring registers 3 {shift, codes 100 ... O, 11 are recorded by the action of clock pulses with {generator 1 at the outputs of the counter 2 nd) c; the system of Radem ™ functions is copied, one of which (output 5) is encoded by the first Haar function. Each 1 of the registers 3 and the corresponding group | pa of multipliers 4 are intended for

forming a subgroup of Haar CC signals of the corresponding Rademacher signal. The existence intervals of the Haar signals are formed at the outputs of registers 3 by cyclically shifting the unit from bit to bit. Shifts in registers 3 are synchronized by Rademacher signals. If there is a signal 1 from the output of register 3 at the input of the multiplier 4, the corresponding Rademacher function is unchanged to the output of the device. If the signal O is on the output of register 3, the value of the output signal of the device is also zero

Claims (1)

Invention Formula The Haar signal generator, which contains a clock generator, is a t-peer counter, where is the number of generated functions not counting constants, 2 -1 cleverly: 1kiteli, the clock generator output is connected to the meter input, the counter output of the counter, where .. ,, m-1 is the numbering from the side of the least significant bit, connected to the first inputs of the multipliers from the () to the 2nd (2-1) output of the m-th digit of the counter, and the outputs of all the multipliers are generator outputs, differing THAT ;, in order to simplify the generator, it contains m-7l ring-shaped shift registers with 2 bits per register shift offset, shift sync input of the i-ro shift register is connected to the output of the (i + 1) -ro counter counter, the bit outputs of the i-ro shift register are connected to the second inputs of the corresponding multipliers from the () -th to the 2 () - th,