The BPSK system is simulated using Matlab/ Simulink environment and System Generator, a tool from Xilinx used for FPGA design as well as implemented on. BPSK System on Spartan 3E FPGA. MICHAL JON. 1. M.S. California university, Email:[email protected] ABSTRACT- The paper presents a theoretical. The application of FPGAs (Field Programmable Gate Array) became an important issue in designing electronic systems. BPSK System on Spartan 3E FPGA.

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Skip to main content. Log In Sign Up. Most of the research has work for SDR-based system. The second signal was years but there is still significant work that needs to be done. Using only one LUT, these waves were obtained. The papers in this area with some implementation examples using first two wave were generated by using two spartzn Xilinx System Generator [4].

Some of this research will be working on the rising edge and the falling edge of a perfect summarized here, especially those related to the work being twice frequency square wave clock which results in a reported. Modulators Their system was implemented directly in Verilog without sytsem Xilinx System Generator tools. BPSK was also I. Chye et al presented a detailed guideline on how to transceivers, has become a widely used method in design and implement BPSK transmitter on Fpya FPGA implementing various communication systems.

These reconfigurable terminals hardware the design output in terms of behaviour, functionality, such as Universal Software Radio Peripheral USRP are the synthesis, timing, and constraints area. The implementation main components in any SDR-based system. Even though they did not wave carrier. Kazaz et al System Generator as in other bpso.

As format can be directly synthesized in the digital domain.

By combining a universal QAM daughter card. Not only digital modulators, as it was explained in the last They used phase shifters to generate four signals from one few paragraphs, but also analog modulators have been input sine wave [23]. Those signal were used as inputs to a implemented using a variety of FPGA based development multiplexer which select one of them based on the message boards [11]- [17].

Some of these researches have reached what signal. They compare their system with a simulated model in they consider optimum wystem in term of efficiency, power MATLAB before the practical test. The generated QPSK consumption, and resources utilization. Despite all the progress that has been made, there is still Kolankar and Sakhare presented an efficient implementation work needs to be done.


This work will focus on implementing in term of power consumption of QPSK modulator using more complex modulation schemes, looking for more efficient Xilinx System Generator [24]. System Generator to generate the VHDL implementation of In kn paper, we presented a novel method of implementing the model.

BPSK system on Spartan 3E FPGA – Semantic Scholar

To date, no one to make sure the implemented system bps efficient in term of has presented or used this idea before in term of FPGA based performance and hardware implementation. The rest of this paper is organized as follow: The way we implemented our systems is novel and 3s II presents a review of the research work in this different from what others presented as it will be shown in the direction, section III illustrates the proposed implementation next section.

We used one LUT and one clock signal and we methods, section IV is the implementation results, and finally worked with the accumulator output to generate different section V is the conclusion and future work. Several papers constellation diagram of BPSK. Based on the value of InGaikwad et al presented an implementation of n, two signals can be generated: In the DDS method, a bit accumulator with LUT were used for the sine wave Based on the value of n in equation 4, four different signals generation.

The accumulator works on the rising edge of the can be generated. These signals are degree out of phase to xpartan. The 8-most significant bits of the accumulator spsrtan each other.

Hence, implementation of QPSK modulator used as an address to select the corresponding amplitude of the required the generation of four sinusoidal signals that sinusoidal signal from the LUT. Since the used address has 8- sequentially have a degree phase shift from the previous bit width, the LUT has to have samples values which signal. To do that, the first signal can be generated as it was cover one cycle of the sinusoidal signal. The second signal as a text file.

They also can be generated by using other was generated using the same LUT but at this time another software such as Microsoft Excel. This accumulator generates a signal with For BPSK, we need to find a way to get the other signal which degree phase shift as compared to the first one.

BPSK system on Spartan 3E FPGA

The other two is degree out of phase as compared to the first signal. The signals are generated by reversing the most significant bit in easy way to do that is to multiply the first signal by -1 which the first and second accumulator and using the same LUT. Unfortunately, in After the generation of the four signals, QPSK modulator VHDL, programmers try to avoid multiplication as possible as can be implemented as a next step.


The incoming binary data they could due to high resources consumption.

Another option has to be converted from serial to parallel data as it is shown is to invert or reverse the most significant bit in the in Fig. This process can be easily done in VHDL. The first address signal were selected to have bit width.

The angle difference between any two adjacent addresses will be Therefore, reversing the most significant bit of the accumulator gives a degree out of phase signal as compared to the original signal. For flexibility and testing, this Fig. An 8-bit width can be used but we: S1 tried to get a higher precision output for driving a DAC. Each symbol can be encoded Fig.

The general form of QPSK symbol is [25]: The four generated sinusoidal waves were exported into MATLAB as text file to check if they meet the specifications we are looking for. Spxrtan is clear that they met all the specifications in term of the degree phase shift as shown in Fig. To get a signal for transmission, a DAC Fig. The two generated out of phase sinusoids.

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The generated sinusoids are shown in Fig. It is very clear that the generated waves have degree phase shift as compared to each other. It is clear where the signal reversed its phase based on the incoming message. The four generated xystem with degree phase shift. The second signal was obtained by using the Malaysia, pp. The other [17] I. The implementation was Conference on Information and Multimedia Technology, pp. With successful [19] W. US Patents 4,; 4,; 4,; 5,; VI.

These have been licensed on an equal-opportunity, non- [2] J. ForApril K ,July 1 – 3, Remember me on this computer. Enter the email address you signed up with and we’ll email you a reset link.

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