Changes between Version 29 and Version 30 of Other/Summer/2024/pD


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Timestamp:
Jul 11, 2024, 7:31:05 PM (5 days ago)
Author:
sdas21
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  • Other/Summer/2024/pD

    v29 v30  
    1818[https://docs.google.com/presentation/d/176HsRDAxeJxmf1tP5aNRFMfCJ6p95QO6EIxRgzuDiPA/edit?usp=share_link Weekly Presentation]\\
    1919
    20 Receiver: Read prior art about [https://ieeexplore.ieee.org/document/8454387 backscatter radio], RFID tags, and [https://ieeexplore.ieee.org/document/8454387 capacitance sensors].
    21 Transmitter: Started learning the TI Launchpad microcontroller, read the documentation, and spoke to Dr. Rich Howard.||
     20//Receiver: //Read prior art about [https://ieeexplore.ieee.org/document/8454387 backscatter radio [1]], RFID tags, and [https://ieeexplore.ieee.org/document/8454387 capacitance sensors [2]].
     21
     22//Transmitter: //Started learning how to use the TI Launchpad microcontroller, read the documentation, and spoke to Dr. Rich Howard.||
    2223
    2324
    … …  
    2526[https://docs.google.com/presentation/d/1bY_nNpxIUeusqLehttZEXWjmkHdcylSNkebI1xsyuZM/edit?usp=sharing Weekly Presentation]\\
    2627
    27 Receiver: Used RTL-SDR's to explore software-defined radios (SDR) and tune into local FM stations. \\Also familiarized ourselves with [https://www.gnuradio.org GNURadio] and its tutorials.
    28 Transmitter: Learned how to use TI Launchpad MCU MSP-EXP430G2ET. \\Implemented an adjustable 200kHz-300kHz 50% duty cycle square wave output. Also implemented user input through digital input using the I/O pins. \\Attempted potentiometer user input, but did not successfully complete it. ||
     28//Receiver: //Used RTL-SDR's to explore software-defined radios (SDR) and tune into local FM stations. Also familiarized ourselves with [https://www.gnuradio.org GNURadio] and its tutorials.
     29
     30//Transmitter: //Learned how to use TI Launchpad MCU MSP-EXP430G2ET. Implemented an adjustable 200kHz-300kHz 50% duty cycle square wave output. Also implemented user input through digital input using the I/O pins. Attempted potentiometer user input, but we did not successfully complete it.
    2931
    3032
    … …  
    3941[https://docs.google.com/presentation/d/1tVhHWkjkA914yFxDjfUT3V-OctOSd3-dtMAMtxsk6sg/edit?usp=sharing Weekly Presentation]\\
    4042
    41 //Progress: //Explored the accuracy of the receiver while changing the power transmission, frequency, and distance between the SDR and signal generator. Introduced about matched filters and how to [https://www.telecom.tuc.gr/~aggelos/files/TCOM2014.pdf implement them into the receiver]. Despite a frequency measurement error, we implemented logging into GNURadio using a file sink. 
     43//Receiver: //Explored the accuracy of the receiver while changing the power transmission, frequency, and distance between the SDR and signal generator. Introduced about matched filters and how to [https://www.telecom.tuc.gr/~aggelos/files/TCOM2014.pdf implement them into the receiver]. Despite a frequency measurement error, we implemented logging into GNURadio using a file sink. 
    4244
    43 \\Using the TI Launchpad Microcontroller we were able to implement FSK. also created a block diagram to illustrate how both the transmitter and receiver should work together to send information about a plant's temperature.\\
     45//Transmitter: //Using the TI Launchpad Microcontroller we were able to implement FSK. also created a block diagram to illustrate how both the transmitter and receiver should work together to send information about a plant's temperature.\\
    4446[[Image(unnamed.2.png, 520px, align=center)]]
    4547
    … …  
    4951
    5052//Progress: //This week, we received three different kinds of thermistors. We were able to implement a backscattered signal that encoded the information from the ADC (using a potentiometer). We are now investigating ways of measuring values from the thermistors, mainly considering a Wheatstone bridge.
    51 //We also worked on the receiver, changing from GNURadio to MATLAB. This has so far shown to work extremely well and much better than GNURadio. We are able to receive the backscattered signal. However there are still some variances in the received signal we have to account for.
     53
     54We also worked on the receiver, changing from GNURadio to MATLAB. This has so far shown to work extremely well and much better than GNURadio. We can receive the backscattered signal. However, there are still some variances in the received signal we have to account for.
    5255[[Image(Periodogram.png, 700px, align=center)]]
     56
     57
    5358==== WEEK SIX ====
    5459[https://docs.google.com/presentation/d/1IVHxp37dLoeeXByd_AVcU_r4t5fZpaF5VpObRvP3WJ0/edit?usp=sharing Weekly Presentation]\\
    … …  
    5762[[Image(wheatstone.png, 300px, align=center)]]
    5863
    59 //We were also able to complete the transceiver-receiver pair
     64We were also able to unite the transceiver-receiver system.
    6065
     66
     67==== WEEK SEVEN ====
     68[https://docs.google.com/presentation/d/1oi4B4d1a3cGwUnAafLqIwy5z64kzrz0qqaEsZvCyuBQ/edit#slide=id.g2e8a5398ef2_0_1 Weekly Presentation]\\
     69
     70//Progress: //
     71
     72We fixed a small broken plexiglass chamber that we will use to store plants. Instead of breaking the entire panel, we chose to glue another sheet of plexiglass on top of it to prevent further cracking.
     73
     74=== References ===
     75(1) A. Bletsas, P. N. Alevizos and G. Vougioukas, "The Art of Signal Processing in Backscatter Radio for μW (or Less) Internet of Things: Intelligent Signal Processing and Backscatter Radio Enabling Batteryless Connectivity," in IEEE Signal Processing Magazine, vol. 35, no. 5, pp. 28-40, Sept. 2018, doi: 10.1109/MSP.2018.2837678.
     76
     77(2) A. Bletsas, P. N. Alevizos and G. Vougioukas, "The Art of Signal Processing in Backscatter Radio for μW (or Less) Internet of Things: Intelligent Signal Processing and Backscatter Radio Enabling Batteryless Connectivity," in IEEE Signal Processing Magazine, vol. 35, no. 5, pp. 28-40, Sept. 2018, doi: 10.1109/MSP.2018.2837678.
     78keywords: {Backscatter;Frequency shift keying;Loaded antennas;Reflector antennas;Baseband},
     79
     80(3) J. Kimionis, A. Bletsas and J. N. Sahalos, "Increased Range Bistatic Scatter Radio," in IEEE Transactions on Communications, vol. 62, no. 3, pp. 1091-1104, March 2014, doi: 10.1109/TCOMM.2014.020314.130559.
     81keywords: {Receivers;Modulation;Radiofrequency identification;Radio frequency;Wireless sensor networks;Bit error rate;Signal to noise ratio;Bistatic scatter radio;wireless sensor networks;modulation schemes;software defined radio},