SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Qualcomm Incorporated (QCOM)
QCOM 159.59-3.9%3:59 PM EST
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: engineer who wrote (15696)9/29/1998 11:18:00 AM
From: Valueman  Read Replies (1) of 152472
 
Ok all you engineering wizards, I need some off topic assistance! Can you tell me the significance of this technology?--Thanks!

TITLE: New Multipath & Co-Channel Interference Suppression Techniques for
Digital Data
ABSTRACT/BENEFITS: Co-channel interference (CCI, i.e. interference from
like-modulated signals), is rapidly emerging as one of the greatest impacts
to new digital data communications systems, both military and commercial.
Multiple users in the same frequency band and overlapping geographic
locations often impact performance of communications equipment more than
noise or more conventional interference. Multipath and dispersive channels
firther exacerbate this impact. A new approach to mitigating Co-channel
interference in a dispersive environment, applying Per Survivor Processing
(PSP), offers the opportunity to achieve large performance improvements
(e.g. improved acquisition, &/or interference rejection) over conventional
design techniques when a large number of users, difficult dynamics and/or
large channel uncertainties are present. Further, PSP excels when the
channel characteristics, the number of interferers or reflections, & other
key signal parameters are unknown. ViaSat proposes to develop CCI
suppression concepts for multipath environments based on PSP techniques,
both scalar and vecton Performance will be analyzed and implementation
complexity sized and optimized. Comparisons will be made to conventional
approaches. Strawman architectures will also be derived. If the Phase I
program is successful ViaSat will clearly show that a PSP based CCI
suppression scheme is practical and that it can take full advantage of
existing commercial technology.
BENEFITS: These PSP CCI suppression techniques offer the potential to
greatly enhance the number of users and/or cell packing density through
improved frequency reuse on commercial TDMA cellular systems. These same
techniques can reduce in-band interference for many emerging military
communications systems as well as enhance signal collection schemes.
KEYWORDS: PER SURVIVOR PROCESSING CELLULAR COMMUNICATIONS CO-CHANNEL
INTERFERENCE TIME DIVISION MULTIPLE
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2025 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News