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RF Sampling using a 3 dB hybrid to generate I & Q
Started by 3 years ago●4 replies●latest reply 3 years ago●158 viewsI know that a 3 dB hybrid can generate a 0 degree and 90 degree output ports. Can I sample these two ports synchronized in time to generate my I & Q signals?...
Modulation in laser satellite communication
Started by 3 years ago●7 replies●latest reply 3 years ago●308 viewsIn small satellite communication technique we can use optical spectrum (optical (laser) communication system). The common and simplest modulation techniques used...
FYI, Article on optical computation
Started by 3 years ago●1 reply●latest reply 3 years ago●120 viewsLight computes any desired linear transform without a digital processor
Kinda cool.
HelloI am building up a RF transceiver using integrated up/down converter chip.This particular chip requires a complex Intermediate Frequency as inputs for up conversion...
Frequency offset estimation for the real signal OFDM
Started by 3 years ago●3 replies●latest reply 3 years ago●161 viewsI asked the question about to recover signal from the real part of IFFT OFDM system before,Recover signal from the real part of IFFT.thanks for the responses from...
How to convert SNR to Eb/N0 in Chirp Spread Spectrum communications
Started by 3 years ago●2 replies●latest reply 3 years ago●728 viewsI'm simulating a Binary Orthognal Chirp Keying communication system in Matlab, with AWGN channel.Basically I'm sending the bit 0 by transmitting a down-chirp C0[n] ...
Connecting a commercially available DSP to SigmaStudio?
Started by 3 years ago●10 replies●latest reply 3 years ago●621 viewsI'd like to add an upmixer software module to an existing commercially available DSP (Car Audio) with a Sharc chip. I see the Jtag header on the circuit board...
Started by Can you find the illegal step in the following silly proof? Given: a=b$$ a^2=ab$$$$a^2-b^2 = ab-b^2$$$$(a+b)(a-b)=b(a-b)$$$$a+b = b$$$$b+b=b$$$$2b=b$$
Design FIR filters using DRHS-OLL algorithm
Started by 3 years ago●1 reply●latest reply 3 years ago●154 viewsBumped to research paper Efficient
FIR Filter Design Methodology Using Dynamic Regional Harmony Search
Algorithm With Opposition And Local Learning (DRHS-OLL)...
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