{"id":1444,"date":"2025-10-14T02:32:34","date_gmt":"2025-10-14T02:32:34","guid":{"rendered":"https:\/\/www.wallisemi.com\/?p=1444"},"modified":"2025-10-15T02:34:09","modified_gmt":"2025-10-15T02:34:09","slug":"rf%e3%83%81%e3%83%83%e3%83%97%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e5%88%86%e6%95%b0%e5%91%a8%e6%b3%a2%e6%95%b0%e5%88%86%e5%89%b2%e6%8a%80%e8%a1%93%e3%81%a8gnss%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0","status":"publish","type":"post","link":"https:\/\/www.wallisemi.com\/ja\/blog\/industry-insights\/research-on-fractional-frequency-division-technology-in-rf-chips-and-its-application-in-gnss-systems\/","title":{"rendered":"RF\u30c1\u30c3\u30d7\u306b\u304a\u3051\u308b\u30d5\u30e9\u30af\u30b7\u30e7\u30ca\u30eb\u5468\u6ce2\u6570\u5206\u5272\u6280\u8853\u3068GNSS\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u5fdc\u7528\u306b\u95a2\u3059\u308b\u7814\u7a76"},"content":{"rendered":"

RF\u30c1\u30c3\u30d7\u306f\u3001\u73fe\u4ee3\u306e\u7121\u7dda\u901a\u4fe1\u304a\u3088\u3073\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u30fb\u30b7\u30b9\u30c6\u30e0\u306e\u4e2d\u6838\u90e8\u54c1\u3068\u3057\u3066\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u7cbe\u5ea6\u3001\u5b89\u5b9a\u6027\u3001\u304a\u3088\u3073\u96c6\u7a4d\u5ea6\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u307e\u3059\u3002GNSS\uff08\u5168\u5730\u7403\u822a\u6cd5\u885b\u661f\u30b7\u30b9\u30c6\u30e0\uff09RF\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306b\u304a\u3044\u3066\u3001\u5468\u6ce2\u6570\u30b7\u30f3\u30bb\u30b5\u30a4\u30b6\u306f\u5c40\u90e8\u767a\u632f\u5668\u4fe1\u53f7\u306e\u751f\u6210\u3092\u62c5\u3046\u91cd\u8981\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u3042\u308a\u3001\u5206\u6570\u5468\u6ce2\u6570\u5206\u5272\u6280\u8853\u306f\u9ad8\u7cbe\u5ea6\u304b\u3064\u4f4e\u30b9\u30d7\u30ea\u30a2\u30b9\u5468\u6ce2\u6570\u5408\u6210\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002\u672c\u8ad6\u6587\u3067\u306f\u3001RF\u30c1\u30c3\u30d7\u306b\u304a\u3051\u308b\u5206\u6570\u5468\u6ce2\u6570\u5206\u5272\u554f\u984c\u306b\u7126\u70b9\u3092\u5f53\u3066\u30012\u3064\u306e\u4e3b\u6d41\u5909\u8abf\u5668\u69cb\u9020\u3092\u5206\u6790\u3057\u3001\u30de\u30eb\u30c1\u30e2\u30fc\u30c9\u30fb\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u30fb\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5229\u70b9\u3068\u767a\u5c55\u306e\u53ef\u80fd\u6027\u3092\u63a2\u308b\u3002.<\/p>\n\n\n\n

1. <\/strong>RF\u30c1\u30c3\u30d7\u3068\u30d5\u30e9\u30af\u30b7\u30e7\u30ca\u30eb\u5468\u6ce2\u6570\u5206\u5272\u6280\u8853\u306e\u80cc\u666f<\/strong><\/strong><\/h5>\n\n\n\n

GNSS\u53d7\u4fe1\u6a5f\u3067\u306f\u3001RF\u30c1\u30c3\u30d7\u304c\u30a2\u30f3\u30c6\u30ca\u3067\u53d7\u4fe1\u3057\u305f\u5fae\u5f31\u306a\u885b\u661f\u4fe1\u53f7\u3092\u5897\u5e45\u3001\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3001\u30c0\u30a6\u30f3\u30b3\u30f3\u30d0\u30fc\u30c8\u3057\u307e\u3059\u3002\u30c0\u30a6\u30f3\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u5fc5\u8981\u306a\u5c40\u90e8\u767a\u632f\u5668\u4fe1\u53f7\u306f\u3001\u4f4d\u76f8\u540c\u671f\u30eb\u30fc\u30d7\uff08PLL\uff09\u5468\u6ce2\u6570\u30b7\u30f3\u30bb\u30b5\u30a4\u30b6\u30fc\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u3001\u51fa\u529b\u5468\u6ce2\u6570fof_ofo\u3068\u57fa\u6e96\u5468\u6ce2\u6570fref_{ref}fref\u304c\u6e80\u8db3\u3059\u308b\uff1a<\/p>\n\n\n\n

fo=N.F\u00d7freff_o = N.F \u2173 f_{ref}fo=N.F\u00d7fref<\/p>\n\n\n\n

\u3053\u3053\u3067N.FN.FN.F\u306f\u5168\u5206\u5468\u6bd4\u3067\u3042\u308a\u3001\u901a\u5e38\u306f\u975e\u6574\u6570\u3067\u3042\u308b\u3002\u5f93\u6765\u306e\u6574\u6570\u5206\u5468\u3067\u306f\u3001\u591a\u5468\u6ce2\u304b\u3064\u9ad8\u7cbe\u5ea6\u306a\u5c40\u90e8\u767a\u632f\u5668\u306e\u30cb\u30fc\u30ba\u3092\u6e80\u305f\u3059\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u5206\u6570\u5206\u5468\u6280\u8853\u304c\u767b\u5834\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u5206\u6570\u5206\u5468\u306f\u300c\u5206\u6570\u30b9\u30d7\u30ea\u30a2\u30b9\u300d\u3092\u767a\u751f\u3055\u305b\u3001\u30b9\u30d7\u30ea\u30a2\u30b9\u5468\u6ce2\u6570\u304c\u30eb\u30fc\u30d7\u5e2f\u57df\u5e45\u5185\u306b\u3042\u308b\u5834\u5408\u3001\u30d5\u30a3\u30eb\u30bf\u30fc\u3067\u9664\u53bb\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u305a\u3001RF\u30c1\u30c3\u30d7\u306e\u51fa\u529b\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u7d14\u5ea6\u3068\u30b7\u30b9\u30c6\u30e0\u6027\u80fd\u306b\u6df1\u523b\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3002.<\/p>\n\n\n\n

2. <\/strong>\u30d5\u30e9\u30af\u30b7\u30e7\u30ca\u30eb\u5468\u6ce2\u6570\u5206\u5272\u5909\u8abf\u5668\u306e2\u3064\u306e\u5178\u578b\u7684\u306a\u69cb\u9020<\/strong><\/strong><\/h5>\n\n\n\n

\u30a2\u30ad\u30e5\u30e0\u30ec\u30fc\u30bf\u30fc\u69cb\u9020 \u30e2\u30b8\u30e5\u30ec\u30fc\u30bf\u30fc<\/strong><\/p>\n\n\n\n

\u30a2\u30ad\u30e5\u30e0\u30ec\u30fc\u30bf\u69cb\u9020\u306f\u3001\u5206\u6570\u5468\u6ce2\u6570\u5206\u5272\u306e\u305f\u3081\u306e\u521d\u671f\u306e\u4e00\u822c\u7684\u306a\u65b9\u6cd5\u3067\u3059\u3002\u591a\u6bb5\u306e\u30a2\u30ad\u30e5\u30e0\u30ec\u30fc\u30bf\u3092\u30ab\u30b9\u30b1\u30fc\u30c9\u63a5\u7d9a\u3059\u308b\u3053\u3068\u3067\u3001\u5206\u5468\u6bd4\u3092NNN\u3068N+1N+1N+1\u306e\u9593\u3067\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u7d71\u8a08\u7684\u5e73\u5747\u5316\u5206\u5468\u304c\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u69cb\u9020\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u5b9f\u88c5\u3057\u3084\u3059\u3044\u304c\u3001\u4f4e\u5468\u6ce2\u30b9\u30d7\u30ea\u30a2\u30b9\u304c\u96c6\u4e2d\u7684\u306b\u767a\u751f\u3059\u308b\u305f\u3081\u3001\u30b9\u30d7\u30ea\u30a2\u30b9\u96fb\u529b\u304c\u9ad8\u304f\u306a\u308a\u3001\u30cf\u30a4\u30a8\u30f3\u30c9RF\u30c1\u30c3\u30d7\u3078\u306e\u5fdc\u7528\u304c\u5236\u9650\u3055\u308c\u308b\u3002.<\/p>\n\n\n\n

MASH1-1-1 \u0394-\u03a3\u69cb\u9020\u30e2\u30b8\u30e5\u30ec\u30fc\u30bf\u30fc<\/strong><\/p>\n\n\n\n

MASH\uff08Multi-stage Noise SHaping\uff09\u69cb\u9020\u306f\u3001\u8907\u6570\u306e1\u6b21\u0394-\u03a3\u5909\u8abf\u5668\u3092\u30ab\u30b9\u30b1\u30fc\u30c9\u63a5\u7d9a\u3057\u3001\u91cf\u5b50\u5316\u30ce\u30a4\u30ba\u306e\u30cf\u30a4\u30d1\u30b9\u30b7\u30a7\u30fc\u30d4\u30f3\u30b0\u3092\u5b9f\u73fe\u3059\u308b\u3002MASH1-1-1\u306e\u5834\u5408\u3001\u305d\u306e\u4f1d\u9054\u95a2\u6570\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308b\uff1a<\/p>\n\n\n\n

y(z)=z-3\u30fbx(z)+(1-z-3)\u30fbe3(z)y(z)=z^{-3}\u3002\\(1-z-3)\u30fbe3(z)\u30fby(z)=z-3\u30fbx(z)+(1-z-3)\u30fbe3(z)<\/p>\n\n\n\n

\u3053\u306e\u69cb\u9020\u306b\u3088\u308a\u3001\u30a8\u30e9\u30fc\u4fe1\u53f7e3(z)e_3(z)e3(z)\u304c\u9ad8\u3044\u5468\u6ce2\u6570\u306b\u62bc\u3057\u51fa\u3055\u308c\u3001\u305d\u306e\u7d50\u679c\u3001\u4f4e\u3044\u5468\u6ce2\u6570\u3067\u306e\u51fa\u529b\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u304c\u304d\u308c\u3044\u306b\u306a\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u51fa\u529b\u5236\u5fa1\u30ef\u30fc\u30c9\u306e\u7bc4\u56f2\u304c\u5e83\u304f\uff08\u4f8b\u3048\u3070-7\u304b\u30897\uff09\u3001\u5206\u5468\u6bd4\u3092\u8907\u6570\u306e\u5024\u306e\u9593\u3067\u30e9\u30f3\u30c0\u30e0\u306b\u30b8\u30e3\u30f3\u30d7\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u30b9\u30d7\u30ea\u30a2\u30b9\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u3055\u3089\u306b\u5206\u6563\u3055\u305b\u3001\u5e2f\u57df\u5185\u306e\u4f4d\u76f8\u96d1\u97f3\u3068\u30b9\u30d7\u30ea\u30a2\u30b9\u306e\u6027\u80fd\u3092\u5927\u5e45\u306b\u6539\u5584\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n

3. <\/strong>\u6027\u80fd\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u6bd4\u8f03\u5206\u6790<\/strong><\/strong><\/h5>\n\n\n\n

\u4e2d\u9593\u5468\u6ce2\u65703.996 MHz\u3068\u57fa\u6e96\u5468\u6ce2\u657016.368 MHz\u3092\u4f7f\u7528\u3057\u305fGPS L1\u3068BD-2 B1\u306e\u5178\u578b\u7684\u306aGNSS\u30b7\u30b9\u30c6\u30e0\u30b7\u30ca\u30ea\u30aa\u306b\u3064\u3044\u3066\u3001ADS\u3092\u4f7f\u7528\u3057\u30662\u3064\u306e\u69cb\u9020\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3057\u305f\u3002\u305d\u306e\u7d50\u679c<\/p>\n\n\n\n

\u30a2\u30ad\u30e5\u30e0\u30ec\u30fc\u30bf\u69cb\u9020\u306b\u306f\u30010-2MHz\u306e\u7bc4\u56f2\u306b\u9855\u8457\u306a\u30b9\u30d7\u30ea\u30a2\u30b9\u30d4\u30fc\u30af\u304c\u3042\u308a\u3001PLL\u306e\u5e2f\u57df\u5185\u6027\u80fd\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3002.<\/p>\n\n\n\n

MASH1-1-1\u69cb\u9020\u306f\u3001\u30ce\u30a4\u30ba\u30b7\u30a7\u30fc\u30d4\u30f3\u30b0\u306b\u3088\u308a\u3001\u30b9\u30d7\u30ea\u30a2\u30b9\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u3088\u308a\u9ad8\u3044\u5468\u6ce2\u6570\uff08\u4f8b\u3048\u3070\u30012MHz\u4ee5\u4e0a\uff09\u306b\u62bc\u3057\u3084\u308a\u3001\u91cd\u8981\u306a\u4f4e\u5468\u6ce2\u6570\u5e2f\u57df\u306e\u30b9\u30d7\u30ea\u30a2\u30b9\u306e\u6291\u5236\u3092\u5927\u5e45\u306b\u6539\u5584\u3059\u308b\u3002.<\/p>\n\n\n\n

PLL\u306e\u30eb\u30fc\u30d7\u5e2f\u57df\u5e45\u306f\u901a\u5e38\u3001\u57fa\u6e96\u5468\u6ce2\u6570\uff08\u7d041.6MHz\uff09\u306e1\/10\u3067\u3042\u308b\u305f\u3081\u3001\u9ad8\u5468\u6ce2\u30b9\u30d7\u30ea\u30a2\u30b9\u306f\u30eb\u30fc\u30d7\u30d5\u30a3\u30eb\u30bf\u30fc\u3067\u52b9\u679c\u7684\u306b\u30d5\u30a3\u30eb\u30bf\u30fc\u3067\u304d\u308b\u3002\u3057\u305f\u304c\u3063\u3066\u3001MASH\u69cb\u9020\u306f\u5468\u6ce2\u6570\u30b7\u30f3\u30bb\u30b5\u30a4\u30b6\u30fc\u306e\u9ad8\u7cbe\u5ea6GNSS RF\u30c1\u30c3\u30d7\u306b\u3088\u308a\u9069\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n\n\n

4. <\/strong>RF\u30c1\u30c3\u30d7\u306b\u304a\u3051\u308b\u30d5\u30e9\u30af\u30b7\u30e7\u30ca\u30eb\u5468\u6ce2\u6570\u5206\u5272\u6280\u8853\u306e\u958b\u767a\u52d5\u5411<\/strong><\/strong><\/h5>\n\n\n\n

\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u30fb\u30b7\u30b9\u30c6\u30e0\u304c\u30de\u30eb\u30c1\u30e2\u30fc\u30c9\uff08BeiDou\/GPS\/Galileo\/GLONASS\uff09\u3001\u30de\u30eb\u30c1\u5468\u6ce2\u6570\u3001\u9ad8\u7cbe\u5ea6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3078\u3068\u9032\u5316\u3059\u308b\u306b\u3064\u308c\u3001RF\u30c1\u30c3\u30d7\u5185\u306e\u5468\u6ce2\u6570\u30b7\u30f3\u30bb\u30b5\u30a4\u30b6\u30fc\u306e\u6027\u80fd\u306f\u307e\u3059\u307e\u3059\u8981\u6c42\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b\u3002\u5206\u6570\u5468\u6ce2\u6570\u5206\u5272\u6280\u8853\u306e\u4eca\u5f8c\u306e\u767a\u5c55\u306f\u3001\u4ee5\u4e0b\u306e\u70b9\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\uff1a<\/p>\n\n\n\n

\u9ad8\u6b21\u0394-\u03a3\u30e2\u30b8\u30e5\u30ec\u30fc\u30bf\u30fc<\/strong>:\u30ce\u30a4\u30ba\u30b7\u30a7\u30fc\u30d4\u30f3\u30b0\u52b9\u7387\u3092\u3055\u3089\u306b\u9ad8\u3081\u3001\u5e2f\u57df\u5185\u4f4d\u76f8\u30ce\u30a4\u30ba\u3092\u4f4e\u6e1b\u3002.<\/p>\n\n\n\n

\u5b8c\u5168\u30c7\u30b8\u30bf\u30ebPLL\uff08ADPLL\uff09\u306e\u7d71\u5408<\/strong>:RF\u30c1\u30c3\u30d7\u306b\u304a\u3051\u308b\u3001\u3088\u308a\u67d4\u8edf\u306a\u5909\u8abf\u5668\u69cb\u9020\u3068\u6821\u6b63\u30e1\u30ab\u30cb\u30ba\u30e0\u306e\u5b9f\u73fe\u3002.<\/p>\n\n\n\n

\u30d7\u30ed\u30bb\u30b9\u5909\u52d5\u9632\u6b62\u8a2d\u8a08<\/strong>:\u30ca\u30ce\u30e1\u30fc\u30c8\u30eb\u30d7\u30ed\u30bb\u30b9\u4e0b\u3067\u306e\u5909\u8abf\u5668\u6027\u80fd\u306e\u4e00\u8cab\u6027\u306e\u78ba\u4fdd\u3002.<\/p>\n\n\n\n

\u591a\u5468\u6ce2\u30e9\u30d4\u30c3\u30c9\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0<\/strong>:\u30b3\u30b0\u30cb\u30c6\u30a3\u30d6\u30fb\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u3068\u30a2\u30f3\u30c1\u30b8\u30e3\u30df\u30f3\u30b0\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3059\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u306a\u5206\u5272\u6bd4\u69cb\u6210\u3092\u30b5\u30dd\u30fc\u30c8\u3002.<\/p>\n\n\n\n

5. <\/strong>\u7d50\u8ad6<\/strong><\/strong><\/h5>\n\n\n\n

\u30d5\u30e9\u30af\u30b7\u30e7\u30ca\u30eb\u5468\u6ce2\u6570\u5206\u5272\u6280\u8853\u306f\u3001RF\u30c1\u30c3\u30d7\u306e\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u6027\u80fd\u3068\u30b7\u30b9\u30c6\u30e0\u7d71\u5408\u3092\u5411\u4e0a\u3055\u305b\u308b\u91cd\u8981\u306a\u30ea\u30f3\u30af\u3067\u3042\u308b\u3002\u30a2\u30ad\u30e5\u30e0\u30ec\u30fc\u30bf\u69cb\u9020\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u4f7f\u3044\u3084\u3059\u3044\u53cd\u9762\u3001\u30b9\u30d7\u30ea\u30a2\u30b9\u6027\u80fd\u306b\u9650\u754c\u304c\u3042\u308b\u3002\u5bfe\u7167\u7684\u306b\u3001MASH1-1-1 \u0394-\u03a3\u69cb\u9020\u306f\u3001\u512a\u308c\u305f\u30ce\u30a4\u30ba\u30b7\u30a7\u30fc\u30d4\u30f3\u30b0\u80fd\u529b\u3092\u6301\u3061\u3001\u9ad8\u6027\u80fdGNSS RF\u30c1\u30c3\u30d7\u306e\u5468\u6ce2\u6570\u30b7\u30f3\u30bb\u30b5\u30a4\u30b6\u306b\u3088\u308a\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u6280\u8853\u3068\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u6700\u9069\u5316\u306e\u9032\u6b69\u306b\u3088\u308a\u3001\u30d5\u30e9\u30af\u30b7\u30e7\u30ca\u30eb\u5468\u6ce2\u6570\u5206\u5272\u6280\u8853\u306f\u3001RF\u30c1\u30c3\u30d7\u3092\u4f4e\u6d88\u8cbb\u96fb\u529b\u3001\u9ad8\u7cbe\u5ea6\u3001\u3088\u308a\u5f37\u529b\u306a\u30a2\u30f3\u30c1\u30b8\u30e3\u30df\u30f3\u30b0\u6a5f\u80fd\u3078\u3068\u5411\u304b\u308f\u305b\u3001\u6b21\u4e16\u4ee3\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u3068\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u78ba\u304b\u306a\u30b5\u30dd\u30fc\u30c8\u3092\u63d0\u4f9b\u3057\u7d9a\u3051\u308b\u3060\u308d\u3046\u3002.<\/p>","protected":false},"excerpt":{"rendered":"

RF chips, as the core component of modern wireless communication and navigation systems, directly influence the accuracy, stability, and integration level of the entire system. In GNSS (Global Navigation Satellite System) RF frontends, frequency synthesizers are key modules responsible for generating local oscillator signals, and fractional frequency division technology is essential for achieving high-precision and low spurious frequency synthesis. This paper focuses on the fractional frequency division problem in RF chips, analyzing two mainstream modulator structures and exploring their application advantages and development prospects in multi-mode navigation systems. 1. Background of RF Chips and Fractional Frequency Division Technology In GNSS receivers, RF chips amplify, filter, and down-convert the weak satellite […]<\/p>\n","protected":false},"author":1,"featured_media":1396,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30,31],"tags":[36],"class_list":["post-1444","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-insights","category-blog","tag-yvette-wu"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.wallisemi.com\/ja\/wp-json\/wp\/v2\/posts\/1444","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wallisemi.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wallisemi.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wallisemi.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wallisemi.com\/ja\/wp-json\/wp\/v2\/comments?post=1444"}],"version-history":[{"count":1,"href":"https:\/\/www.wallisemi.com\/ja\/wp-json\/wp\/v2\/posts\/1444\/revisions"}],"predecessor-version":[{"id":1445,"href":"https:\/\/www.wallisemi.com\/ja\/wp-json\/wp\/v2\/posts\/1444\/revisions\/1445"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wallisemi.com\/ja\/wp-json\/wp\/v2\/media\/1396"}],"wp:attachment":[{"href":"https:\/\/www.wallisemi.com\/ja\/wp-json\/wp\/v2\/media?parent=1444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wallisemi.com\/ja\/wp-json\/wp\/v2\/categories?post=1444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wallisemi.com\/ja\/wp-json\/wp\/v2\/tags?post=1444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}