Why would prefer to use a Gaussian pulse in generating Ultra Wide band (UWB) signal ?

Why would prefer to use a Gaussian pulse in generating Ultra Wide band (UWB) signal ?What are the characteristics of this pulse compared to the rest of the pulse, for example the rectangular pulse?

08 September 2017 8,477 1 View

Why would prefer to use a Gaussian pulse in generating Ultra Wide band (UWB) signal ?

Why would prefer to use a Gaussian pulse in generating Ultra Wide band (UWB) signal ?What are the characteristics of this pulse compared to the rest of the pulse, for example the rectangular pulse?

08 September 2017 4,578 0 View

How can implement 16-QAM in optisystem software ?

02 March 2017 9,024 0 View

How can mesh the signal of (UWB) with (OFDM) ?

01 February 2017 1,948 2 View

Why use a Gaussian waveforms to generate Ultra wide band (UWB) ?

31 December 2016 2,312 3 View

How can generate UWB optically ?

31 December 2016 4,563 1 View

Whats mean All optical OFDM super channel ?

Hello for all, I want to know the working principle of (All Optical OFDM) and what it means (Super channel) and what is its impact on OFDM . Thank you to each one provides any information to help...

11 December 2016 9,334 0 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

How to add missing citation?

Dear colleagues, I have found that many authors have a concern regarding their missing citation in RG because often citation in RG is lower than google scholars. I also missed some citation...

26 February 2021 928 6 View

Centrality measures computation in Biblioshiny/ Vosviewer?

26 February 2021 7,279 2 View

How can we limit artifacts caused by rotation in fiber photometry?

We are trying to run fiber photometry experiments for long time scales, but we get these sinusoidal artifacts that come up. We think they may be caused by twisting of the fiber optic subject...

25 February 2021 568 1 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

How can I simulate the optical absorption spectrum of a biomaterial (like DNA or protein) in COMSOL?

I need to simulate the optical properties of a biomaterial, namely DNA, in COMSOL. Basically I need to simulate the IR absorption spectrum of a cylinder filled with a 'concentration' of DNA. I am...

21 February 2021 3,043 3 View

What is the reason of the received optical signal to be slimmed down in multi-mode fiber?

What is the reason of the received optical signal to be slimmed down in multi-mode fiber? I have 4 km multi-mode fiber

03 February 2021 1,105 10 View

Why it is not permissible to correct all 5 classical optical aberration (spherical, chromatic, coma, astigmatism, curvature of field) simultaneously?

When first order paraxial optics is expanded to third order optics (i.e. sin x~ x-x3/3! instead of sin x~x) , these 5 optical aberrations result in. What is the rigorous mathematical proof that,...

26 January 2021 8,666 4 View

Difference between Second-harmonic generation and Two-photon absorption?

Hello Dear Researchers, I am confused about the Difference between Second-harmonic generation and Two-photon absorption? Can anyone describe the two phenomena briefly in the physical picture? What...

24 January 2021 9,912 5 View

Is it possible that the single-pass absorption exceeds 50%?

Dear researchers It's well-known that the maximum light absorption of any structure can not be greater than 50%. Is it possible that the single-pass absorption exceeds 50%? How?

17 January 2021 2,335 7 View