Displaying Records (continued)

A good format I can use to preview the content of the record is the KWIC or Keyword in Context format (Format K). This format allows me to see a window of 30 words around my search terms. It gives me more information about the topic so I can tell whether the record is pertinent to my research needs. Tip 4-2

To display more of the records, I enter the TYPE command, identifying the records I want to view in a more detailed format. Looking at records 1 – 5 should give us an idea of what research is being done on the iridium project.

t s4/8,k/1-5

We can see by looking at the excerpts from these records that several records talk about the Main Mission Antenna concept.

Go to next page when you have finished browsing the records below.

?t s4/8,k/1-5
 
 4/8,K/1
DIALOG(R)File 4:(c) 1999 Institution of Electrical Engineers. 
All rts. reserv.

6278974   INSPEC Abstract Number: B1999-08-5270D-008
 Title: The  IRIDIUM  main  mission  antenna concept
  Publication Date: March 1999
  Document  Number:  S0018-926X(99)05435-6    Document  Type: 
  Journal Paper(JP)
  Treatment: Applications (A); New Developments (N); Practical (P);
Experimental (X)
  Descriptors: antenna phased arrays; microstrip antenna arrays; mobile
satellite   communication ; multibeam antennas; personal communication
networks; satellite  antennas; shaped beam antennas; 
UHF antennas
  Identifiers: main   mission   antenna ; IRIDIUM ; phase array panel;
L-band satellite -ground links; beamforming architecture; radiated
intermodulation products; patch radiators; T/R module; DC power
 consumption minimisation; multicarrier RF output power; test results;
 compliant array operation; UHF; global personal satellite
  communications system; multiple simultaneous-shaped beam operation;
 pattern testing
   Class Codes: B5270D (Antenna arrays); B6250F (Mobile radio systems);
B6250G (Satellite communication systems)
  Copyright 1999, IEE

 Title: The  IRIDIUM  main  mission  antenna concept
  Abstract:  The  design  of  a  novel  phase array panel that 
provides the L-band  satellite  to ground links for the IRIDIUM  
 global communications system is presented. Key components and 
 aspects of this phase array antenna are...
  ...Descriptors: mobile   satellite   communication ; ...
...satellite  antennas
  Identifiers: main   mission   antenna ; ...
...IRIDIUM ; ...
...L-band satellite -ground links...
...global personal satellite  communications system

 4/8,K/2
DIALOG(R)File 4:(c) 1999 Institution of Electrical Engineers. 
All rts.reserv.

6186608   INSPEC Abstract Number: B1999-04-6250G-037
 Title:  Future  optical ISL characteristics from the perspective
 of large commercial constellations
  Publication Date: 1998
  Document Type: Journal Paper (JP)
  Treatment: General, Review (G)
  Descriptors: optical links; satellite  links; space communication
   links
  Identifiers: optical ISL characteristics; large commercial 
constellations; LEO constellations; 
inter-satellite  links; RF crosslinks; optical intersatellite links; 
RF technology; commercial satellite  programs
  Class Codes: B6250G (Satellite communication systems); B6250H (Space
communication systems); B6260S (Free-space optical links)
  Copyright 1999, IEE

  ...Abstract:  few  years  has  created formidable new tasks for the 
space industry.  
Systems  such  as  the  IRIDIUM (R) Program, Globalstar(R), and 
Odyssey/sup(TM)/ challenge  the long standing paradigm on how to design, 
build,  and  launch  satellites  .  
A second generation of big LEOs is now being  planned  
to  offer broadband services for Internet access, cellular backhaul,
videoconferencing   and  distance  learning.  Systems  such  as 
Teledesic/sup  (TM)/ and M-Star are planned to make extensive use of
 inter-satellite links. Until now, these crosslinks have been
 implemented using RF technology, but as the data...

... of  these systems increases, serious consideration must be given
  to the use of  optical  inter- satellite   links. Much has been
 discussed in the media over the past years about the relative...

... This  paper  avoids  this  debate,  and  examines  the  reasons
 that RF technology  currently  dominates  inter- satellite   links.
 The  cost of existing optical terminals for space is measured in
  the millions to...

... millions  of dollars. These figures often compare to the total
   on-orbit cost of   the  satellites   in  commercial  constellations. 
 Clearly,  a significant  paradigm  shift  will  be  required  in order
 for producers of optical  ISLs  to  realize  a  business  from  these 
 commercial satellite programs.  This  paper  discusses  both the 
 technical  and  programmatic requirements of terminals for such systems...
  ...Descriptors: satellite  links
  ...Identifiers: inter-satellite  links...

...commercial satellite  programs


 4/8,K/3
DIALOG(R)File   4:(c) 1999 Institution of Electrical Engineers. 
All rts. reserv.

6174428   INSPEC Abstract Number: B1999-04-6250G-012
 Title: Mobile  satellite services: service implementation will
determine winners and losers
  Publication Date: 1998
  Document Type: Conference Paper (PA)
  Treatment: General, Review (G)
  Descriptors: commerce; legislation; mobile satellite communication;
telecommunication services
  Identifiers: mobile satellite  service; service implementation;
commercial mobile satellite  services; IRIDIUM ; Globalstar;
 twenty-first century; regulatory challenges; service challenges; 
multiple satellite constellations; service delivery; satellite  owner

  Class Codes: B6250G (Satellite communication systems); B6250F
(Mobile radio systems)
  Copyright 1999, IEE

 Title: Mobile  satellite services: service implementation will
 determine winners and losers
  Abstract:  In  1998,  commercial  mobile  satellite  services (MSS)
 will become  available through IRIDIUM  and possibly Globalstar.
  Other entities are building mobile satellite  systems for 
commercial availability in the twenty-first century. The regulatory
 and service challenges of...

... customers  are of such a magnitude that the technical risks in
  building and launching  multiple  satellite  constellations will
 appear minimal by comparison. Service delivery will be challenging
 and complicated because it will be carried out by various entities
 not under the control of satellite owners.
  ...Descriptors: mobile   satellite   communication ;
  Identifiers: mobile satellite  service...
...commercial mobile satellite  services...
...IRIDIUM ; ...
...multiple satellite  constellations...
...satellite  owner

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