Forums Update, Tips and Tricks - Please Read!

Started by stephaneb 12 months ago7 replieslatest reply 1 day ago475 views
It's been a few months since the launch of the new forums.  Here are a few thoughts. The thumbsup and beer buttons    If there is one thing that could have a...

Differential encoder simulation

Started by simonzz 4 days ago7 replieslatest reply 3 days ago49 views
Hello,I am studying the following differential encoder:where the quantizer is defined as \( Q(y) = \text{sgn}(y) \)and I would like to be sure I understand it correctly,...

Floating Point to Fixed Point Conversion

Started by nehavedam 2 weeks ago11 replieslatest reply 4 days ago91 views
Hi!I am working on converting a floating point MATLAB code into fixed point C code. The code is to be run on a DSP platform, the specifics of which are yet to be...

Differential frequency measurement

Started by techn0mad 1 week ago12 replieslatest reply 5 days ago74 views
Hi all:Can anyone suggest a good way of doing DTMF-like tone detection by determining the (known) frequency difference between limited time duration tone-pairs?...

Frame Synchronization ZigBee

Started by cogwsn 7 days ago32 views
Hi, If my understanding is correct, most of the 802.15.4 receiver implementations perform frame synchronization i.e. find the start of the frame using the preambles...

LPC to LSP Confusion...

Started by fyfe93 2 weeks ago1 replylatest reply 2 weeks ago61 views
Hi Everyone,I'm working on a speech vocoder and have so far been able to use the SPTK functions to achieve most of this. However I'm confused as I want to be able...

Reverberation rejection filter

Started by naumankalia 3 weeks ago10 replieslatest reply 2 weeks ago76 views
Hi all I am working on colored noise (reverberation) rejection algorithms. One approach present in literature is through prewhitening filter. In this approach as...

Gapped-signals

Started by Tudelft_Res 2 weeks ago13 replieslatest reply 2 weeks ago64 views
Dear signal processing enthusiasts: 
  • I am forced to cut off a part of a multi-frequency signal, creating a "gap" as shown in the figure. (only one frequency to simplify illustration). 
  • If I inject part A of the signal into a FIR which has linear phase vs frequency, and set the FIR to have a group_delay proportional to the gap length, the output's phase doesn't change, and hence the stitched signal has a phase jump.
  • I am looking for a filter that would let part A propagate through, to the point where its phase matches part B's phase. Does such a filter exist?
...

How does one delay a signal and allow its phase to propagate vs time with a specific slope or rate?

Started by Tudelft_Res 3 weeks ago10 replieslatest reply 2 weeks ago64 views
How does one delay a signal and allow its phase to propagate vs time with a specific slope or rate? How can one -digitally- simulate the effect of a propagation...

Book tips for "control systems"

Started by ombz 2 months ago10 replieslatest reply 3 weeks ago99 views
Hi guys!I wonder if you could recommend any books about "control systems" -- the basics, maths, plots etc. and of course some (common) real applications. This is...

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