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I want matlab code to plot 8-bit FSK ( frequency shift modulation ) for bit error rate
CLE Problem 1) A 5MHz carrier is used as the central frequency for an FSK system to transmit a periodic sequence of Os and 1s represented as no pulse and a pulse of duration 0.02 ms, respectively. Design (find f and f2) this system if the channel bandwidth is limited to 1MHz. How can the bit rate be increased by 40% using the same channel.
(c) Consider a Frequency Hoping (FH) binary orthogonal FSK system carrying speech signal with a cut-off frequency of 3.4 kHz for transmission after undergoing analog- digital conversion process. The following chip sequences for 4 code-division multiple access (CDMA) transmitters are given: A: (-1-1 -1 +1 +1 -1+1+1) B:(-1-1 +1 -1 +1 +1+1-1) C: (-1 +1 -1 +1 +1 +1-1-1) D: (-1 +1 -1-1-1-1+1-1) Assuming A, B and C are simultaneously sending 0, determine the resulting chip sequence in the channel?...
Why is this formula for the chemical shift, chemical shift = signal frequency in Hz/ applied frequency in MHz *10^6, in ppm? Shouldn't it be just Hz/MHz? Where does the times 10^6 come from?
Doppler Shift/Beat Frequency An angry bird shrieks at a frequency of 875 Hz as it flies toward a wall at a speed of 12 m/s. What frequency does the bird hear echoing back from the wall?
Perform the RF communication simulation for FSK modulation, for the modulation and transmission of the information signal with the carrier on the proteus, and for the re-acquisition with a coherent type structure on the receiving side. Display communication signals. (You can use the carrier and information signal at the frequency you want)
2. (1 point) Given the chemical shift (in ppm) and the instrument frequency calculate the shift from TMS in Hz. a. CHg (600 MHz instrument); 6 = 2.7 b. C14H14 (300 MHz instrument); 6 = 7.1
Find the fractional shift in frequency, as measured on Earth, for light from a star of mass 1030 kg, assuming that the photons come from just above the star's atmosphere where rb 1000 km. -
Part A What is the frequency shift of the ultrasound reflected from blood moving in an artery at a speed of 0.23 m/s? Express your answer with the appropriate units. A Doppler blood flow unit emits ultrasound at 5.8 MHz Af-Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 29 attempts remaining Provide Feedback Next >
For the given waveforms A and B of same frequency, determine the phase shift between them in degrees. Considering A as reference determine whether waveform B is leading or lagging A