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Hello, I am trying to write a function for implementing a FIR filter in C. I am implementing fixed point integer arithmetic but have a filter specified in floating...
Good evening everyone!I have a question concerning data transmission via FSK.As far as I know, conventional methods encode symbols via matching a sequence of bits...
OFDM with real-only transmission
Started by 2 years ago●46 replies●latest reply 2 years ago●717 viewsConsider a 64 subcarrier OFDM waveform with 20MHz bandwidth. At the transmitter, we would generate 64 complex numbers (A(n) + jB(n)) n=1, 2, 3, .... 64 using the...
Linear convolution using oversampled filterbank
Started by 2 years ago●2 replies●latest reply 2 years ago●320 viewsI am trying to understand how to obtain linear convolution when using a filterbank (FB) with frequency decimation. According to https://en.wikipedia.org/wiki/Discrete-time_Fourie... such...
Group delay in a multirate system
Started by 2 years ago●7 replies●latest reply 2 years ago●397 viewsRecently, I have worked on a multirate system, the delay from the input and output found from the cross correlation was far off from the theoretical result. I don’t...
I'm coding up an implementation of a filter and to test it I would like a set of coefficients. Does anyone know how to make filter coefficients such that:it can...
I'm wondering if anyone here can trace the history of DSP notation. There's no universally-agreed-upon set of conventions, as far as I'm aware. When I discussed...
Started by A few months ago, this community tackled the first FPGA FAQ titled When (and why) is it a good idea to use an FPGA in your embedded system design?. Your contributions...
Deriving velocity from accelerometer data
Started by 2 years ago●12 replies●latest reply 2 years ago●879 viewsHello, I am currently using an accelerometer for measuring the vibration signatures in rotating machines. But the requirement has changed now, to have the velocity to...
FSK demodulation with repetitive impulse jammer
Started by 2 years ago●2 replies●latest reply 2 years ago●257 viewsHi,I demodulate FSK (46 ks/s,3600/4800Hz,1200 Bd) and I have regular fat jammer pulses every 221 samples. Filtering away the pulses outside the useful spectrum 2k6-5k8Hz...
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