Triangular wave signal generator

Abstract

The invention discloses a triangular wave signal generator. The triangular wave signal generator comprises a clock circuit unit, a programmable logic controller unit, a DDS unit, an amplifier unit and an adder unit which are connected in sequence, the programmable logic controller unit is further connected with a JTAG interface unit, and the adder unit is further connected with a direct current reference voltage unit. The triangular wave signal generator uses the advanced high-speed digital signal processing technology and direct digital frequency synthesizer technology to overcome the disadvantages of narrow frequency range, complex circuit, various apparatuses, high cost, low independence, and low practicability and so on of an existing triangular wave signal generator.

Description

technical field [0001] The invention relates to the fields of radar detection, communication, navigation and other electronic equipment, in particular to a triangular wave signal generator. Background technique [0002] At present, in the fields of radar detection, communication and navigation, high-precision triangular wave signals are often required as modulation signals or reference signals. Especially in microwave radio detection devices, it is necessary to provide a high-frequency, high-precision, high-linearity and high-stability triangular wave as a chirp signal source for a voltage-controlled oscillator (VCO). At the same time, in order to satisfy the voltage-controlled oscillator to generate frequency sweep signals of different frequencies, the voltage value and peak-to-peak value of the triangular wave signal need to meet specific requirements. Therefore, the quality of the triangular wave signal directly affects the accuracy and reliability of the radio detection...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art such as the narrow frequency range, complex circuit, many types of devices, high cost, and low independence of the triangular wave generator, and provide a high-precision triangular wave signal generator suitable for radio detection devices It not only combines the advantages of high-speed digital signal processing technology and direct digital frequency synthesizer technology, but also makes up for the shortcomings of existing triangular wave generators such as narrow frequency range, complex circuit, many types of devices, high cost, and low independence.

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