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Generating device of multi-band ultra-wideband radio frequency signal based on dual-drive modulator

A dual-drive modulator and radio frequency signal technology, applied in the field of communication, can solve problems such as high cost and complex structure, and achieve the effect of reducing complexity and improving flexibility

Inactive Publication Date: 2016-01-20
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the system has a rather complex structure, making the production process prohibitively expensive

Method used

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  • Generating device of multi-band ultra-wideband radio frequency signal based on dual-drive modulator
  • Generating device of multi-band ultra-wideband radio frequency signal based on dual-drive modulator
  • Generating device of multi-band ultra-wideband radio frequency signal based on dual-drive modulator

Examples

Experimental program
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Embodiment 1

[0031] This example image 3 As described above, the sequence length generated by the timing pulse generator 4 is a sequence of 128 bits, which contains a continuous element sequence with a variable data rate and is then divided into two paths by the electrical splitter 12, respectively amplifying and loading the dual-drive modulator 3 Two radio frequency terminals, wherein: the relative position of the signals is controlled by the electrical delay line 5, so that the delay between the signals is 1 bit period. By controlling various parameters, the output signal is interfered to obtain the UWB pulse signal, and the corresponding signal waveform and electric spectrum can be obtained through the oscilloscope 11 and the electric spectrometer 10 respectively.

[0032] The signal splitter divides the generated data sequence into two signals with the same energy and the same data.

[0033] Such as figure 1 Described dual-drive modulator 3 is made up of two phase modulators 3 that ...

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PUM

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Abstract

The invention belongs to the field of communication and discloses a method for generating a multi-band ultra wide band radio-frequency signal based on a dually-driven modulator. Two phase modulators of the dually-driven modulator are loaded with gaussian pulse strings containing element sequences with different lengths respectively, and then the amplitudes and relative phase shift of two gaussian pulse string signals are regulated respectively, so that a transverse electric mode optical signal is output by a polarization controller, and the multi-band ultra wide band radio-frequency signal is generated by the dually-driven modulator. According to the method, the transverse electric mode optical signal passes through the polarization controller, and then the flexible multi-band ultra wide band radio-frequency signal is generated by the dually-driven modulator; as a result, the complexity of a flexible UWB pulse signal generation device is greatly lowered, and a low-cost, simple and flexible MB-UWB pulse signal is generated.

Description

technical field [0001] The present invention relates to a method and device in the field of communication, in particular to a multi-band ultra-wideband (Multiband- Ultrawideband, MB‐UWB) radio frequency wireless signal method and device. Background technique [0002] As an effective wireless transmission technology, UWB ultra-wideband signal can not only be synchronized with the existing wireless technology, but also can reduce the transmission power of the system, so it has been extensively studied. [0003] The UWB signal in the wireless system is mainly divided into two categories: the UWB signal in the form of a pulse (UWBpulse), which transmits the corresponding signal through a discrete pulse signal, and the transmission bandwidth of the electrical signal is between 3.1GHz and 10.6GHz. Therefore, the generated ultra-wideband signal has a very high bandwidth, all of which are on the same electrical wavelength; the other is a multi-band UWB signal (MultibandUWB, MB-UWB)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/7176
Inventor 曹攀胡小锋蒋黎鹏吴佳旸苏翼凯
Owner SHANGHAI JIAOTONG UNIV