CN206321707U - A kind of spectrum analyzer of PCIE standards subcard form - Google Patents

Abstract

The purpose of this utility model is to provide a kind of spectrum analyzer of PCIE standards subcard size.The analyzer is made up of RF front-end module being linked in sequence successively, on same substrate, baseband processing module, digital signal processing module, high-speed communication module.The baseband processing module carries out Base-Band Processing using AD9364 RF transceivers, and the high-speed communication module is communicated using PCIE buses with host computer.Baseband processing module carries out Base-Band Processing using AD9364 RF transceivers, the function such as amplification, mixing, filtering, DAC being integrated with needed for radio-frequency receiving-transmitting path, greatly reduces the volume of equipment.High-speed communication module is connected using PCIE buses with host computer, and the interface selection standard PCIE between the PCIE buses and host computer communicates golden finger, in convenient insertion main frame PCIe card groove, today popularized in computer, with being widely used property.

Description

A kind of spectrum analyzer of PCIE standards subcard form

Technical field

The utility model is related to spectrum analyzer field, more particularly to a kind of spectrum analysis of PCIE standards subcard form Instrument.

Background technology

Conventional desktop spectrum analyzer is highly developed.But conventional desktop spectrum analyzer can not be broken away from and independently make With, manually operated use pattern.In automatic test fields of measurement, conventional desktop spectrum analyzer has many limitations, less It is adapted to highly integrated system testing, and this kind of instrument heaviness, display screen are small, are unfavorable for observation.While this kind of instrument power consumption Greatly, ambient noise is big, volume is big and expensive, is not suitable with the megatrend of energy-saving and emission-reduction.AD9364 transceivers are a height Integrated RF transceiver, the transceiver is integrated with the modules such as amplification, mixing, filtering, the DAC needed for radio-frequency receiving-transmitting path, can To realize the transmission-receiving function of radiofrequency signal, equipment volume is substantially reduced.

Furthermore, powerful due to computer function, be capable of the compact and flexible instrument of fitting computer turns into existing instrument Development trend.

The content of the invention

The purpose of this utility model is to provide the spectrum analyzer that a kind of size is standard PCIE subcard sizes.

To achieve the above object, the technical solution adopted in the utility model is：

A kind of spectrum analyzer of PCIE standards subcard form, described spectrum analyzer include it is being linked in sequence successively, RF front-end module, baseband processing module, digital signal processing module on same substrate, high-speed communication module, The high-speed communication module is connected using PCIE buses with host computer, and spectrum analysis module is set in described host computer.It is described Baseband processing module carries out Base-Band Processing using AD9364 RF transceivers.Interface choosing between the PCIE buses and host computer With standard PCIE communication golden fingers.

It is preferred that, described spectrum analyzer also includes signal input interface, the reference clock input being arranged on substrate Interface, reference clock output interface.Described signal input interface, reference clock input interface, reference clock output interface point It is not connected with the input of RF front-end module.

It is preferred that, the signal input interface is SMA interfaces or N interfaces.

The beneficial effects of the utility model are：Baseband processing module carries out Base-Band Processing using AD9364 RF transceivers, The functions such as amplification, mixing, filtering, the DAC being integrated with needed for radio-frequency receiving-transmitting path, greatly reduce the volume of equipment.It is logical at a high speed Letter module is connected using PCIE buses with host computer, the PCIE EBIs selection standard PCIE communications golden finger, convenient to insert Enter in main frame PCIe card groove, today popularized in computer, with being widely used property.

Brief description of the drawings

Fig. 1 is theory diagram of the present utility model；

Fig. 2 is structural representation of the present utility model.

Embodiment

1~2 the utility model is expanded on further below in conjunction with the accompanying drawings.

As Figure 1-Figure 2, a kind of spectrum analyzer of PCIE standards subcard form, described spectrum analyzer include according to Secondary RF front-end module 1 be linked in sequence, on same substrate, baseband processing module 2, digital signal processing module 3rd, high-speed communication module 4, the high-speed communication module 4 is connected using PCIE buses with host computer.Set in described host computer Spectrum analysis module 5.The baseband processing module 2 carries out Base-Band Processing, the PCIE buses using AD9364 RF transceivers Interface selection standard PCIE between host computer communicates golden finger 6.The baseband processing module 2 uses AD9364 radio-frequency receiving-transmittings Device carries out Base-Band Processing, and AD9364 RF transceivers are integrated with RF, mixed signal, the function of radiofrequency signal transmitting-receiving, are substantially reduced The volume of spectrum analyzer.AD9364 RF transceivers include be linked in sequence low-noise amplifier, IQ amplifiers, frequency mixer, The signal received can be down-converted to base band by band shaping wave filter, band shaping wave filter, to be digitized.

The signal data handled well is transferred in high-speed communication module 4 by the digital signal processing module 3.The high speed Communication module 4 follows PCIE agreements, the PCIE that the signal data that digital signal processing module 3 is transmitted passes through high-speed communication module 4 Bus transfer is into host computer.The PCIE bus transfers have the characteristics of data transmission rate is high.5 pairs of the spectrum analysis module The signal data for being transferred to host computer carries out completing the display such as spectrogram, Waterfall plot, IQ figures, planisphere while advanced analysis, The measurement such as EVM, modulation depth, signal amplitude phase parameter is carried out simultaneously.The host computer can select desktop computer or notes This formula computer or other Intelligent treatment equipment with central processing unit and mainboard.

The PCIE EBI selection standards PCIE communication golden fingers 6 of the high-speed communication module 4.Described spectrum analysis Instrument also includes the signal input interface 7, reference clock input interface 8, reference clock output interface 9 being arranged on substrate, described Signal input interface 7, reference clock input interface 8, the input of reference clock output interface 9 respectively with RF front-end module 1 End connection.Reference clock input interface 8 and reference clock output interface 9 are connected defeated there is provided reference clock with RF front-end module 1 Enter output function.

The signal input interface 7 selects SMA interfaces, also can select N-type interface.

Utility model works principle：The golden finger 6 set on substrate is inserted in host computer, reference clock input interface 8 and reference clock output interface 9 be connected that there is provided reference clock input/output function with RF front-end module 1.Radiofrequency signal passes through Signal input interface 7 is input to RF front-end module 1, after the processing such as filtering, amplification by RF front-end module 1, radio frequency letter Number enter baseband processing module 2 in, carry out down coversion and IQ demodulation, complete radiofrequency signal digitlization.Signal after digitlization Cached and computing into digital signal processing module 3.Digital signal processing module 3 transmits the signal data handled well Into high-speed communication module 4, signal data is transferred in host computer, host computer by high-speed communication module 4 by PCIE buses The signal data that 5 pairs of spectrum analysis module is received carries out completing spectrogram, Waterfall plot, IQ figures, planisphere while advanced analysis Deng display, while carrying out the measurement such as EVM, modulation depth, signal amplitude phase parameter, related personnel can be shown by host computer Screen reads image and data.

Although the foregoing describing embodiment of the present utility model, it will be appreciated by those of skill in the art that On the premise of without departing substantially from principle of the present utility model and essence, various changes or modifications can be made to these embodiments, But these changes and modification each fall within protection domain of the present utility model.

Claims (3)

1. a kind of spectrum analyzer of PCIE standards subcard form, it is characterised in that：Described spectrum analyzer includes suitable successively Sequence connection, the RF front-end module (1) on same substrate, baseband processing module (2), digital signal processing module (3), high-speed communication module (4), the high-speed communication module (4) is connected using PCIE buses with host computer；Described host computer Interior setting spectrum analysis module (5)；The baseband processing module (2) carries out Base-Band Processing using AD9364 RF transceivers；Institute The interface selection standard PCIE between PCIE buses and host computer is stated to communicate golden finger (6).

2. a kind of spectrum analyzer of PCIE standards subcard form according to claim 1, it is characterised in that：Described frequency spectrum Signal input interface (7), reference clock input interface (8), the reference clock output that analyzer also includes being arranged on substrate connect Mouth (9)；Described signal input interface (7), reference clock input interface (8), reference clock output interface (9) respectively with radio frequency The input connection of front-end module (1).

3. a kind of spectrum analyzer of PCIE standards subcard form according to claim 2, it is characterised in that：The signal is defeated Incoming interface (7) is SMA interfaces or N interfaces.